[ 36.140610] audit: type=1800 audit(1545847530.754:26): pid=7539 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 36.184084] audit: type=1800 audit(1545847530.764:27): pid=7539 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.206122] audit: type=1800 audit(1545847530.764:28): pid=7539 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.735895] audit: type=1800 audit(1545847531.384:29): pid=7539 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.216' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 147.192110] syz-executor090 (16102) used greatest stack depth: 8680 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 154.317868] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 154.356646] CPU: 1 PID: 16399 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 154.365343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 154.374709] Call Trace: [ 154.377310] dump_stack+0x1d3/0x2c6 [ 154.380947] ? dump_stack_print_info.cold.1+0x20/0x20 [ 154.386158] dump_header+0x253/0x1239 [ 154.389972] ? pagefault_out_of_memory+0x19d/0x19d [ 154.394902] ? mark_held_locks+0x130/0x130 [ 154.399160] ? __lock_acquire+0x62f/0x4c20 [ 154.403730] ? lockdep_hardirqs_on+0x421/0x5c0 [ 154.408316] ? retint_kernel+0x2d/0x2d [ 154.412203] ? trace_hardirqs_on_caller+0xc0/0x310 [ 154.417142] ? trace_hardirqs_off+0x310/0x310 [ 154.421642] ? graph_lock+0x270/0x270 [ 154.425458] ? graph_lock+0x270/0x270 [ 154.429262] ? print_usage_bug+0xc0/0xc0 [ 154.433325] ? print_usage_bug+0xc0/0xc0 [ 154.437386] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 154.442152] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 154.447690] ? find_held_lock+0x36/0x1c0 [ 154.451766] ? mark_held_locks+0xc7/0x130 [ 154.455947] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 154.461051] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 154.466152] ? lockdep_hardirqs_on+0x421/0x5c0 [ 154.470737] ? trace_hardirqs_on+0xbd/0x310 [ 154.475057] ? kasan_check_read+0x11/0x20 [ 154.479215] ? ___ratelimit+0x36f/0x655 [ 154.483194] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 154.488653] ? trace_hardirqs_on+0x310/0x310 [ 154.493063] ? lock_downgrade+0x900/0x900 [ 154.497215] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 154.502318] ? ___ratelimit+0xaa/0x655 [ 154.506212] ? idr_get_free+0xf70/0xf70 [ 154.510190] ? kasan_check_read+0x11/0x20 [ 154.514349] oom_kill_process.cold.27+0x10/0x8f9 [ 154.519114] ? graph_lock+0x270/0x270 [ 154.522919] ? __rcu_read_unlock+0x205/0x210 [ 154.527331] ? trace_hardirqs_on+0x310/0x310 [ 154.531744] ? oom_evaluate_task+0x540/0x540 [ 154.536261] ? find_held_lock+0x36/0x1c0 [ 154.540334] ? out_of_memory+0xcc5/0x1480 [ 154.544482] ? lock_downgrade+0x900/0x900 [ 154.548630] ? check_preemption_disabled+0x48/0x280 [ 154.553659] ? __rcu_read_unlock+0x205/0x210 [ 154.558071] ? rcu_read_unlock_special+0x370/0x370 [ 154.563014] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 154.568042] ? oom_evaluate_task+0x302/0x540 [ 154.572458] out_of_memory+0x8ba/0x1480 [ 154.576444] ? oom_killer_disable+0x3a0/0x3a0 [ 154.580949] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 154.585881] ? __ww_mutex_check_waiters+0x160/0x160 [ 154.590905] __alloc_pages_slowpath+0x22f7/0x2d90 [ 154.595768] ? warn_alloc+0x120/0x120 [ 154.599567] ? mark_held_locks+0x130/0x130 [ 154.603811] ? warn_alloc+0x120/0x120 [ 154.607613] ? print_usage_bug+0xc0/0xc0 [ 154.611688] ? _raw_spin_unlock_irq+0x60/0x80 [ 154.616183] ? print_usage_bug+0xc0/0xc0 [ 154.620242] ? finish_task_switch+0x1b4/0x910 [ 154.624743] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 154.630281] ? should_fail+0x22d/0xd01 [ 154.634171] ? graph_lock+0x270/0x270 [ 154.637977] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 154.643099] ? find_held_lock+0x36/0x1c0 [ 154.647176] ? _raw_spin_unlock+0x2c/0x50 [ 154.651325] ? ___might_sleep+0x1ed/0x300 [ 154.655482] ? lock_release+0xa00/0xa00 [ 154.659459] ? arch_local_save_flags+0x40/0x40 [ 154.664042] ? check_preemption_disabled+0x48/0x280 [ 154.669066] ? __might_sleep+0x95/0x190 [ 154.673048] __alloc_pages_nodemask+0xa89/0xde0 [ 154.677723] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 154.682748] ? __switch_to_asm+0x34/0x70 [ 154.686824] ? cache_grow_begin+0x5a3/0x8c0 [ 154.691146] ? lockdep_hardirqs_on+0x421/0x5c0 [ 154.695729] ? trace_hardirqs_on+0xbd/0x310 [ 154.700055] ? fallback_alloc+0x203/0x2e0 [ 154.704219] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 154.709670] ? ____cache_alloc_node+0x16b/0x1e0 [ 154.714354] ? lock_downgrade+0x900/0x900 [ 154.718514] cache_grow_begin+0x91/0x8c0 [ 154.722580] ? do_raw_spin_unlock+0xa7/0x330 [ 154.727001] fallback_alloc+0x203/0x2e0 [ 154.730981] ____cache_alloc_node+0x1c7/0x1e0 [ 154.735484] kmem_cache_alloc+0x1f6/0x730 [ 154.739647] ? check_preemption_disabled+0x48/0x280 [ 154.744674] getname_flags+0xd0/0x590 [ 154.748488] user_path_at_empty+0x2d/0x50 [ 154.752643] ksys_chdir+0xc0/0x230 [ 154.756189] ? __ia32_sys_access+0x80/0x80 [ 154.760427] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 154.765883] __x64_sys_chdir+0x31/0x40 [ 154.769775] do_syscall_64+0x1b9/0x820 [ 154.773664] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 154.779033] ? syscall_return_slowpath+0x5e0/0x5e0 [ 154.783961] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 154.788810] ? trace_hardirqs_on_caller+0x310/0x310 [ 154.793831] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 154.798851] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 154.804397] ? prepare_exit_to_usermode+0x291/0x3b0 [ 154.809423] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 154.814278] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 154.819467] RIP: 0033:0x4460e7 [ 154.822664] Code: 00 00 8b 44 24 08 e9 67 ff ff ff 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d8 0f 1f 44 00 00 b8 50 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 154.841574] RSP: 002b:00007ffeec192658 EFLAGS: 00000246 ORIG_RAX: 0000000000000050 [ 154.849292] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004460e7 [ 154.856567] RDX: 0000000000000001 RSI: 00000000006db0a0 RDI: 00007ffeec1926b0 [ 154.863838] RBP: 0000000000000000 R08: 0000000000001e12 R09: 000000000072c880 [ 154.871111] R10: 000000000072cb50 R11: 0000000000000246 R12: 00000000000001e8 [ 154.878385] R13: 0000000000024ac5 R14: 0000000000000000 R15: 0000000000000000 [ 155.386566] Mem-Info: [ 155.389061] active_anon:1381928 inactive_anon:201 isolated_anon:0 [ 155.389061] active_file:168 inactive_file:145 isolated_file:32 [ 155.389061] unevictable:0 dirty:13 writeback:0 unstable:0 [ 155.389061] slab_reclaimable:13721 slab_unreclaimable:106196 [ 155.389061] mapped:303 shmem:244 pagetables:14858 bounce:0 [ 155.389061] free:24763 free_pcp:237 free_cma:0 [ 155.424220] Node 0 active_anon:5527712kB inactive_anon:804kB active_file:672kB inactive_file:460kB unevictable:0kB isolated(anon):0kB isolated(file):256kB mapped:1212kB dirty:52kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5367808kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 155.452239] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 155.478535] lowmem_reserve[]: 0 2816 6319 6319 [ 155.483274] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 155.520813] lowmem_reserve[]: 0 0 3503 3503 [ 155.525177] Node 0 Normal free:39160kB min:39424kB low:48768kB high:58112kB active_anon:2843524kB inactive_anon:804kB active_file:800kB inactive_file:312kB unevictable:0kB writepending:52kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:64672kB pagetables:41400kB bounce:0kB free_pcp:1096kB local_pcp:124kB free_cma:0kB [ 155.590815] lowmem_reserve[]: 0 0 0 0 [ 155.594662] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 155.620818] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 155.660828] Node 0 Normal: 107*4kB (M) 636*8kB (UMH) 1115*16kB (UMH) 160*32kB (UME) 72*64kB (UM) 22*128kB (ME) 7*256kB (M) 3*512kB (UME) 0*1024kB 0*2048kB 0*4096kB = 39228kB [ 155.683443] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 155.702452] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 155.720104] 457 total pagecache pages [ 155.724263] 0 pages in swap cache [ 155.727821] Swap cache stats: add 0, delete 0, find 0/0 [ 155.733336] Free swap = 0kB [ 155.736447] Total swap = 0kB [ 155.739557] 1965979 pages RAM [ 155.742803] 0 pages HighMem/MovableOnly [ 155.746876] 343420 pages reserved [ 155.750436] 0 pages cma reserved [ 155.755097] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7739,uid=0 [ 155.791733] Out of memory: Kill process 7739 (syz-executor090) score 0 or sacrifice child [ 155.801019] Killed process 7739 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:64kB, shmem-rss:0kB executing program executing program executing program [ 155.912618] syz-executor090 (16400) used greatest stack depth: 5048 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 160.024675] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 160.035414] CPU: 0 PID: 7695 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 160.043992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 160.053352] Call Trace: [ 160.055969] dump_stack+0x1d3/0x2c6 [ 160.059614] ? dump_stack_print_info.cold.1+0x20/0x20 [ 160.064828] dump_header+0x253/0x1239 [ 160.068635] ? mark_held_locks+0x130/0x130 [ 160.072886] ? pagefault_out_of_memory+0x19d/0x19d [ 160.077818] ? mark_held_locks+0x130/0x130 [ 160.082047] ? mark_held_locks+0x130/0x130 [ 160.086267] ? __lock_acquire+0x62f/0x4c20 [ 160.090488] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 160.096044] ? finish_task_switch+0x1f4/0x910 [ 160.100524] ? graph_lock+0x270/0x270 [ 160.104311] ? print_usage_bug+0xc0/0xc0 [ 160.108357] ? __switch_to_asm+0x40/0x70 [ 160.112402] ? print_usage_bug+0xc0/0xc0 [ 160.116451] ? __switch_to_asm+0x40/0x70 [ 160.120506] ? __switch_to_asm+0x34/0x70 [ 160.124553] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 160.130077] ? find_held_lock+0x36/0x1c0 [ 160.134128] ? mark_held_locks+0xc7/0x130 [ 160.138266] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 160.143355] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 160.148445] ? lockdep_hardirqs_on+0x421/0x5c0 [ 160.153013] ? trace_hardirqs_on+0xbd/0x310 [ 160.157322] ? kasan_check_read+0x11/0x20 [ 160.161457] ? ___ratelimit+0x36f/0x655 [ 160.165429] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 160.170865] ? trace_hardirqs_on+0x310/0x310 [ 160.175261] ? lock_downgrade+0x900/0x900 [ 160.179400] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 160.184488] ? ___ratelimit+0xaa/0x655 [ 160.188365] ? idr_get_free+0xf70/0xf70 [ 160.192327] ? kasan_check_read+0x11/0x20 [ 160.196469] oom_kill_process.cold.27+0x10/0x8f9 [ 160.201225] ? graph_lock+0x270/0x270 [ 160.205014] ? __rcu_read_unlock+0x205/0x210 [ 160.209410] ? trace_hardirqs_on+0x310/0x310 [ 160.213820] ? oom_evaluate_task+0x540/0x540 [ 160.218217] ? find_held_lock+0x36/0x1c0 [ 160.222270] ? out_of_memory+0xcc5/0x1480 [ 160.226406] ? lock_downgrade+0x900/0x900 [ 160.230541] ? check_preemption_disabled+0x48/0x280 [ 160.235549] ? __rcu_read_unlock+0x205/0x210 [ 160.239945] ? rcu_read_unlock_special+0x370/0x370 [ 160.244864] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 160.249870] ? oom_evaluate_task+0x302/0x540 [ 160.254268] out_of_memory+0x8ba/0x1480 [ 160.258248] ? oom_killer_disable+0x3a0/0x3a0 [ 160.262730] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 160.267655] ? __ww_mutex_check_waiters+0x160/0x160 [ 160.272669] __alloc_pages_slowpath+0x22f7/0x2d90 [ 160.277514] ? warn_alloc+0x120/0x120 [ 160.281298] ? mark_held_locks+0x130/0x130 [ 160.285520] ? lru_cache_add+0xa50/0xa50 [ 160.289569] ? warn_alloc+0x120/0x120 [ 160.293362] ? find_held_lock+0x36/0x1c0 [ 160.297409] ? print_usage_bug+0xc0/0xc0 [ 160.301456] ? print_usage_bug+0xc0/0xc0 [ 160.305507] ? put_page+0x1bb/0x280 [ 160.309121] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 160.314644] ? should_fail+0x22d/0xd01 [ 160.318599] ? graph_lock+0x270/0x270 [ 160.322391] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 160.327484] ? find_held_lock+0x36/0x1c0 [ 160.331542] ? ___might_sleep+0x1ed/0x300 [ 160.335672] ? lock_release+0xa00/0xa00 [ 160.339633] ? arch_local_save_flags+0x40/0x40 [ 160.344202] ? check_preemption_disabled+0x48/0x280 [ 160.349209] ? __might_sleep+0x95/0x190 [ 160.353173] __alloc_pages_nodemask+0xa89/0xde0 [ 160.357831] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 160.362847] ? cache_grow_begin+0x5a3/0x8c0 [ 160.367153] ? lockdep_hardirqs_on+0x421/0x5c0 [ 160.371719] ? trace_hardirqs_on+0xbd/0x310 [ 160.376027] ? fallback_alloc+0x203/0x2e0 [ 160.380178] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 160.385617] ? ____cache_alloc_node+0x16b/0x1e0 [ 160.390274] ? lock_downgrade+0x900/0x900 [ 160.394513] cache_grow_begin+0x91/0x8c0 [ 160.398578] ? do_raw_spin_unlock+0xa7/0x330 [ 160.403484] fallback_alloc+0x203/0x2e0 [ 160.407451] ____cache_alloc_node+0x1c7/0x1e0 [ 160.411933] kmem_cache_alloc+0x1f6/0x730 [ 160.416068] ? cap_capable+0x1f9/0x260 [ 160.419953] getname_flags+0xd0/0x590 [ 160.423747] user_path_mountpoint_at+0x27/0x40 [ 160.428316] ksys_umount+0x1c5/0x13b0 [ 160.432108] ? __detach_mounts+0x430/0x430 [ 160.436328] ? lock_downgrade+0x900/0x900 [ 160.440461] ? kasan_check_read+0x11/0x20 [ 160.444597] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 160.449861] ? rcu_read_unlock_special+0x370/0x370 [ 160.454777] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 160.460300] ? check_preemption_disabled+0x48/0x280 [ 160.465306] ? kasan_check_write+0x14/0x20 [ 160.469524] ? up_read+0x225/0x2c0 [ 160.473052] ? up_read_non_owner+0x100/0x100 [ 160.477451] ? do_syscall_64+0x9a/0x820 [ 160.481411] ? do_syscall_64+0x9a/0x820 [ 160.485368] ? lockdep_hardirqs_on+0x421/0x5c0 [ 160.489936] ? trace_hardirqs_on+0xbd/0x310 [ 160.494251] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 160.499600] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 160.505041] __x64_sys_umount+0x54/0x80 [ 160.509004] do_syscall_64+0x1b9/0x820 [ 160.512880] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 160.518230] ? syscall_return_slowpath+0x5e0/0x5e0 [ 160.523144] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 160.527977] ? trace_hardirqs_on_caller+0x310/0x310 [ 160.532983] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 160.537984] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 160.543595] ? prepare_exit_to_usermode+0x291/0x3b0 [ 160.548602] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 160.553436] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 160.558613] RIP: 0033:0x449407 [ 160.561792] Code: 44 00 00 b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 5d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 3d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 160.580676] RSP: 002b:00007ffeec191568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 160.588459] RAX: ffffffffffffffda RBX: 0000000000000064 RCX: 0000000000449407 [ 160.595712] RDX: 0000000040000001 RSI: 0000000000000002 RDI: 00007ffeec1926b0 [ 160.602971] RBP: 0000000000004010 R08: 0000000000001e0f R09: 000000000072c880 [ 160.610238] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000001e0 [ 160.617493] R13: 00007ffeec1926b0 R14: 0000000000000000 R15: 0000000000000000 [ 160.635872] Mem-Info: [ 160.640702] active_anon:1381724 inactive_anon:201 isolated_anon:0 [ 160.640702] active_file:100 inactive_file:153 isolated_file:41 [ 160.640702] unevictable:0 dirty:16 writeback:0 unstable:0 [ 160.640702] slab_reclaimable:13753 slab_unreclaimable:106019 [ 160.640702] mapped:212 shmem:244 pagetables:14967 bounce:0 [ 160.640702] free:24588 free_pcp:375 free_cma:0 [ 160.675586] Node 0 active_anon:5526896kB inactive_anon:804kB active_file:400kB inactive_file:712kB unevictable:0kB isolated(anon):0kB isolated(file):164kB mapped:948kB dirty:64kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5365760kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 160.704657] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 160.731105] lowmem_reserve[]: 0 2816 6319 6319 [ 160.735853] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 160.767087] lowmem_reserve[]: 0 0 3503 3503 [ 160.772332] Node 0 Normal free:39468kB min:37376kB low:46720kB high:56064kB active_anon:2842708kB inactive_anon:804kB active_file:520kB inactive_file:916kB unevictable:0kB writepending:64kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:65312kB pagetables:41836kB bounce:0kB free_pcp:840kB local_pcp:372kB free_cma:0kB [ 160.841006] lowmem_reserve[]: 0 0 0 0 [ 160.844989] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 160.859333] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB executing program [ 160.876445] Node 0 Normal: 2*4kB (UM) 326*8kB (MH) 1135*16kB (UMH) 152*32kB (UM) 70*64kB (UME) 21*128kB (M) 7*256kB (M) 3*512kB (UME) 0*1024kB 1*2048kB (M) 0*4096kB = 38184kB [ 160.948439] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 160.966763] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 160.985706] 809 total pagecache pages [ 160.994157] 0 pages in swap cache [ 161.000932] Swap cache stats: add 0, delete 0, find 0/0 [ 161.006857] Free swap = 0kB [ 161.010003] Total swap = 0kB [ 161.013307] 1965979 pages RAM [ 161.016539] 0 pages HighMem/MovableOnly [ 161.020637] 343420 pages reserved [ 161.024357] 0 pages cma reserved [ 161.027853] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=dhclient,pid=7443,uid=0 [ 161.043140] Out of memory: Kill process 7443 (dhclient) score 0 or sacrifice child [ 161.051252] Killed process 7443 (dhclient) total-vm:9968kB, anon-rss:2288kB, file-rss:0kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 168.909899] syz-executor090 invoked oom-killer: gfp_mask=0x7080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), order=3, oom_score_adj=0 [ 168.922188] CPU: 1 PID: 16590 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 168.930860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.940220] Call Trace: [ 168.942827] dump_stack+0x1d3/0x2c6 [ 168.946464] ? dump_stack_print_info.cold.1+0x20/0x20 [ 168.951674] dump_header+0x253/0x1239 [ 168.955497] ? mark_held_locks+0x130/0x130 [ 168.959747] ? pagefault_out_of_memory+0x19d/0x19d [ 168.964678] ? mark_held_locks+0x130/0x130 [ 168.968926] ? mark_held_locks+0x130/0x130 [ 168.973162] ? __lock_acquire+0x62f/0x4c20 [ 168.977401] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 168.982950] ? finish_task_switch+0x1f4/0x910 [ 168.987447] ? graph_lock+0x270/0x270 [ 168.991248] ? print_usage_bug+0xc0/0xc0 [ 168.995310] ? __switch_to_asm+0x40/0x70 [ 168.999370] ? print_usage_bug+0xc0/0xc0 [ 169.003428] ? __switch_to_asm+0x40/0x70 [ 169.007491] ? __switch_to_asm+0x34/0x70 [ 169.011553] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.017092] ? find_held_lock+0x36/0x1c0 [ 169.021162] ? mark_held_locks+0xc7/0x130 [ 169.025313] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 169.030419] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 169.035520] ? lockdep_hardirqs_on+0x421/0x5c0 [ 169.040086] ? trace_hardirqs_on+0xbd/0x310 [ 169.044388] ? kasan_check_read+0x11/0x20 [ 169.048519] ? ___ratelimit+0x36f/0x655 [ 169.052478] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 169.057912] ? trace_hardirqs_on+0x310/0x310 [ 169.062301] ? lock_downgrade+0x900/0x900 [ 169.066473] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 169.071559] ? ___ratelimit+0xaa/0x655 [ 169.075428] ? idr_get_free+0xf70/0xf70 [ 169.079384] ? kasan_check_read+0x11/0x20 [ 169.083523] oom_kill_process.cold.27+0x10/0x8f9 [ 169.088372] ? graph_lock+0x270/0x270 [ 169.092166] ? __rcu_read_unlock+0x205/0x210 [ 169.096555] ? trace_hardirqs_on+0x310/0x310 [ 169.100950] ? oom_evaluate_task+0x540/0x540 [ 169.105341] ? find_held_lock+0x36/0x1c0 [ 169.109388] ? out_of_memory+0xcc5/0x1480 [ 169.113519] ? lock_downgrade+0x900/0x900 [ 169.117648] ? check_preemption_disabled+0x48/0x280 [ 169.122651] ? __rcu_read_unlock+0x205/0x210 [ 169.127155] ? rcu_read_unlock_special+0x370/0x370 [ 169.132071] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 169.137076] ? oom_evaluate_task+0x302/0x540 [ 169.141487] out_of_memory+0x8ba/0x1480 [ 169.145455] ? oom_killer_disable+0x3a0/0x3a0 [ 169.149938] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 169.154852] ? __ww_mutex_check_waiters+0x160/0x160 [ 169.159869] __alloc_pages_slowpath+0x22f7/0x2d90 [ 169.164705] ? warn_alloc+0x120/0x120 [ 169.168488] ? mark_held_locks+0x130/0x130 [ 169.172708] ? find_held_lock+0x36/0x1c0 [ 169.176757] ? lock_downgrade+0x900/0x900 [ 169.180899] ? check_preemption_disabled+0x48/0x280 [ 169.185907] ? kasan_check_read+0x11/0x20 [ 169.190047] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 169.195310] ? rcu_read_unlock_special+0x370/0x370 [ 169.200225] ? rcu_softirq_qs+0x20/0x20 [ 169.204197] ? graph_lock+0x270/0x270 [ 169.207985] ? kernel_text_address+0x79/0xf0 [ 169.212379] ? __kernel_text_address+0xd/0x40 [ 169.216857] ? unwind_get_return_address+0x61/0xa0 [ 169.221774] ? find_held_lock+0x36/0x1c0 [ 169.225842] ? ___might_sleep+0x1ed/0x300 [ 169.229969] ? lock_release+0xa00/0xa00 [ 169.233947] ? arch_local_save_flags+0x40/0x40 [ 169.238514] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.243862] ? __might_sleep+0x95/0x190 [ 169.247821] __alloc_pages_nodemask+0xa89/0xde0 [ 169.252470] ? lock_downgrade+0x900/0x900 [ 169.256600] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 169.261595] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.267115] ? check_preemption_disabled+0x48/0x280 [ 169.272116] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 169.277636] ? rcu_pm_notify+0xc0/0xc0 [ 169.281516] ? copy_process+0x2027/0x8780 [ 169.285649] ? rcu_read_lock_sched_held+0x108/0x120 [ 169.290647] ? kmem_cache_alloc_node+0x34d/0x730 [ 169.295408] copy_process+0xa09/0x8780 [ 169.299285] ? warn_alloc+0x120/0x120 [ 169.303066] ? __lock_acquire+0x62f/0x4c20 [ 169.307283] ? page_add_new_anon_rmap+0xb70/0xb70 [ 169.312127] ? __cleanup_sighand+0x70/0x70 [ 169.316346] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.321865] ? wakeup_kswapd+0x13d/0x930 [ 169.325910] ? isolate_lru_page+0x22e0/0x22e0 [ 169.330389] ? graph_lock+0x270/0x270 [ 169.334192] ? print_usage_bug+0xc0/0xc0 [ 169.338239] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.343764] ? check_preemption_disabled+0x48/0x280 [ 169.348851] ? __lock_is_held+0xb5/0x140 [ 169.352897] ? __lock_acquire+0x62f/0x4c20 [ 169.357137] ? wake_all_kswapds+0x150/0x300 [ 169.361446] ? flush_tlb_func_common.constprop.16+0x923/0xd80 [ 169.367315] ? __enqueue_entity+0x10d/0x1f0 [ 169.371636] ? mem_cgroup_update_lru_size+0xd0/0xd0 [ 169.376638] ? mark_held_locks+0x130/0x130 [ 169.380862] ? print_usage_bug+0xc0/0xc0 [ 169.384913] ? warn_alloc+0x120/0x120 [ 169.388702] ? mark_held_locks+0x130/0x130 [ 169.392922] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 169.397930] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.403449] ? check_preemption_disabled+0x48/0x280 [ 169.408451] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.413972] ? __lru_cache_add+0x2ff/0x4e0 [ 169.418190] ? __pagevec_lru_add+0x30/0x30 [ 169.422405] ? mark_held_locks+0x130/0x130 [ 169.426646] ? __lock_acquire+0x62f/0x4c20 [ 169.430871] ? lru_cache_add+0x417/0xa50 [ 169.434930] ? lru_cache_add_file+0x20/0x20 [ 169.439278] ? print_usage_bug+0xc0/0xc0 [ 169.443327] ? rcu_read_unlock_special+0x370/0x370 [ 169.448242] ? check_preemption_disabled+0x48/0x280 [ 169.453242] ? __this_cpu_preempt_check+0x1c/0x20 [ 169.458066] ? mem_cgroup_event_ratelimit.isra.53+0x51/0x110 [ 169.463849] ? mark_held_locks+0xc7/0x130 [ 169.467993] ? mem_cgroup_commit_charge+0x275/0x9d0 [ 169.472989] ? mem_cgroup_commit_charge+0x275/0x9d0 [ 169.477986] ? graph_lock+0x270/0x270 [ 169.481769] ? lru_cache_add+0xa50/0xa50 [ 169.485849] ? lock_downgrade+0x900/0x900 [ 169.489983] ? check_preemption_disabled+0x48/0x280 [ 169.494986] ? find_held_lock+0x36/0x1c0 [ 169.499047] ? __handle_mm_fault+0x2c14/0x55f0 [ 169.503620] ? lock_downgrade+0x900/0x900 [ 169.507759] ? kasan_check_read+0x11/0x20 [ 169.511892] ? do_raw_spin_unlock+0xa7/0x330 [ 169.516284] ? do_raw_spin_trylock+0x270/0x270 [ 169.520851] ? migration_entry_to_page+0x550/0x550 [ 169.525765] ? pte_offset_kernel+0xf0/0xf0 [ 169.529989] ? _raw_spin_unlock+0x2c/0x50 [ 169.534127] ? __handle_mm_fault+0x9b4/0x55f0 [ 169.538610] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 169.543439] ? graph_lock+0x270/0x270 [ 169.547225] ? print_usage_bug+0xc0/0xc0 [ 169.551267] ? graph_lock+0x270/0x270 [ 169.555051] ? graph_lock+0x270/0x270 [ 169.558839] ? find_held_lock+0x36/0x1c0 [ 169.562886] _do_fork+0x1cb/0x11d0 [ 169.566414] ? fork_idle+0x1d0/0x1d0 [ 169.570494] ? kasan_check_read+0x11/0x20 [ 169.574632] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 169.579901] ? rcu_read_unlock_special+0x370/0x370 [ 169.584827] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 169.590346] ? check_preemption_disabled+0x48/0x280 [ 169.595361] ? kasan_check_write+0x14/0x20 [ 169.599579] ? up_read+0x225/0x2c0 [ 169.603121] ? up_read_non_owner+0x100/0x100 [ 169.607518] ? do_syscall_64+0x9a/0x820 [ 169.611475] ? do_syscall_64+0x9a/0x820 [ 169.615431] ? lockdep_hardirqs_on+0x421/0x5c0 [ 169.620009] ? trace_hardirqs_on+0xbd/0x310 [ 169.624327] ? mprotect_fixup+0xc60/0xc60 [ 169.628460] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.633826] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 169.639264] __x64_sys_clone+0xbf/0x150 [ 169.643256] do_syscall_64+0x1b9/0x820 [ 169.647132] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 169.652482] ? syscall_return_slowpath+0x5e0/0x5e0 [ 169.657397] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 169.662224] ? trace_hardirqs_on_caller+0x310/0x310 [ 169.667224] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 169.672224] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 169.677747] ? prepare_exit_to_usermode+0x291/0x3b0 [ 169.682749] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 169.687581] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.692753] RIP: 0033:0x449389 [ 169.695930] Code: ff 48 85 f6 0f 84 e7 dd fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c be dd fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 [ 169.714820] RSP: 002b:00007ffeec192528 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 169.722522] RAX: ffffffffffffffda RBX: 00007fc7f3597700 RCX: 0000000000449389 [ 169.729775] RDX: 00007fc7f35979d0 RSI: 00007fc7f3596e70 RDI: 00000000003d0f00 [ 169.737141] RBP: 00007ffeec192670 R08: 00007fc7f3597700 R09: 00007fc7f3597700 [ 169.744391] R10: 00007fc7f35979d0 R11: 0000000000000202 R12: 0000000000000000 [ 169.751643] R13: 00007ffeec1925df R14: 00007fc7f35979c0 R15: 00000000006dcd2c executing program [ 169.772438] Mem-Info: [ 169.775773] active_anon:1381392 inactive_anon:201 isolated_anon:0 [ 169.775773] active_file:44 inactive_file:88 isolated_file:32 [ 169.775773] unevictable:0 dirty:3 writeback:4 unstable:0 [ 169.775773] slab_reclaimable:13755 slab_unreclaimable:106094 [ 169.775773] mapped:100 shmem:244 pagetables:15046 bounce:0 [ 169.775773] free:24709 free_pcp:266 free_cma:0 [ 169.852955] Node 0 active_anon:5525568kB inactive_anon:804kB active_file:676kB inactive_file:1952kB unevictable:0kB isolated(anon):0kB isolated(file):256kB mapped:1600kB dirty:12kB writeback:16kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5365760kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 169.881898] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 169.932184] lowmem_reserve[]: 0 2816 6319 6319 [ 169.943582] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 169.979135] lowmem_reserve[]: 0 0 3503 3503 [ 169.983728] Node 0 Normal free:36928kB min:37376kB low:46720kB high:56064kB active_anon:2841380kB inactive_anon:804kB active_file:1184kB inactive_file:784kB unevictable:0kB writepending:28kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:65824kB pagetables:42152kB bounce:0kB free_pcp:1700kB local_pcp:720kB free_cma:0kB [ 170.013704] lowmem_reserve[]: 0 0 0 0 [ 170.017632] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 170.031486] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 170.047844] Node 0 Normal: 1*4kB (E) 300*8kB (MEH) 1066*16kB (UME) 160*32kB (UME) 65*64kB (UM) 22*128kB (M) 8*256kB (ME) 2*512kB (UM) 0*1024kB 1*2048kB (M) 0*4096kB = 36676kB [ 170.063900] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 170.072988] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 170.081812] 764 total pagecache pages [ 170.085738] 0 pages in swap cache [ 170.089283] Swap cache stats: add 0, delete 0, find 0/0 [ 170.095740] Free swap = 0kB [ 170.098864] Total swap = 0kB [ 170.103180] 1965979 pages RAM [ 170.109748] 0 pages HighMem/MovableOnly [ 170.117299] 343420 pages reserved [ 170.125359] 0 pages cma reserved [ 170.132194] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7721,uid=0 [ 170.160252] Out of memory: Kill process 7721 (syz-executor090) score 0 or sacrifice child [ 170.178950] Killed process 7721 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:24kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 171.448156] syz-executor090 (16581) used greatest stack depth: 5032 bytes left executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 173.964603] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 173.975440] CPU: 0 PID: 7695 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 173.984022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 173.993380] Call Trace: [ 173.995974] dump_stack+0x1d3/0x2c6 [ 173.999611] ? dump_stack_print_info.cold.1+0x20/0x20 [ 174.004903] dump_header+0x253/0x1239 [ 174.008708] ? mark_held_locks+0x130/0x130 [ 174.012958] ? pagefault_out_of_memory+0x19d/0x19d [ 174.017888] ? mark_held_locks+0x130/0x130 [ 174.022132] ? mark_held_locks+0x130/0x130 [ 174.026366] ? __lock_acquire+0x62f/0x4c20 [ 174.030603] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.036152] ? finish_task_switch+0x1f4/0x910 [ 174.040655] ? graph_lock+0x270/0x270 [ 174.044458] ? print_usage_bug+0xc0/0xc0 [ 174.048523] ? __switch_to_asm+0x40/0x70 [ 174.052598] ? print_usage_bug+0xc0/0xc0 [ 174.056660] ? __switch_to_asm+0x40/0x70 [ 174.060727] ? __switch_to_asm+0x34/0x70 [ 174.064793] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.070342] ? find_held_lock+0x36/0x1c0 [ 174.074411] ? mark_held_locks+0xc7/0x130 [ 174.078561] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 174.083670] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 174.088781] ? lockdep_hardirqs_on+0x421/0x5c0 [ 174.093365] ? trace_hardirqs_on+0xbd/0x310 [ 174.097772] ? kasan_check_read+0x11/0x20 [ 174.102019] ? ___ratelimit+0x36f/0x655 [ 174.105996] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 174.111452] ? trace_hardirqs_on+0x310/0x310 [ 174.115865] ? lock_downgrade+0x900/0x900 [ 174.120026] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 174.125133] ? ___ratelimit+0xaa/0x655 [ 174.129032] ? idr_get_free+0xf70/0xf70 [ 174.133010] ? kasan_check_read+0x11/0x20 [ 174.137174] oom_kill_process.cold.27+0x10/0x8f9 [ 174.141939] ? graph_lock+0x270/0x270 [ 174.145754] ? __rcu_read_unlock+0x205/0x210 [ 174.150193] ? trace_hardirqs_on+0x310/0x310 [ 174.154609] ? oom_evaluate_task+0x540/0x540 [ 174.159022] ? find_held_lock+0x36/0x1c0 [ 174.163099] ? out_of_memory+0xcc5/0x1480 [ 174.167256] ? lock_downgrade+0x900/0x900 [ 174.171406] ? check_preemption_disabled+0x48/0x280 [ 174.176436] ? __rcu_read_unlock+0x205/0x210 [ 174.180847] ? rcu_read_unlock_special+0x370/0x370 [ 174.185781] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 174.190796] ? oom_evaluate_task+0x302/0x540 [ 174.195215] out_of_memory+0x8ba/0x1480 [ 174.199199] ? oom_killer_disable+0x3a0/0x3a0 [ 174.203702] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 174.208643] ? __ww_mutex_check_waiters+0x160/0x160 [ 174.213671] __alloc_pages_slowpath+0x22f7/0x2d90 [ 174.218541] ? warn_alloc+0x120/0x120 [ 174.222343] ? mark_held_locks+0x130/0x130 [ 174.226580] ? lru_cache_add+0xa50/0xa50 [ 174.230659] ? warn_alloc+0x120/0x120 [ 174.234481] ? find_held_lock+0x36/0x1c0 [ 174.238546] ? print_usage_bug+0xc0/0xc0 [ 174.242711] ? print_usage_bug+0xc0/0xc0 [ 174.246796] ? put_page+0x1bb/0x280 [ 174.250424] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 174.255968] ? should_fail+0x22d/0xd01 [ 174.259848] ? graph_lock+0x270/0x270 [ 174.263642] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 174.268731] ? find_held_lock+0x36/0x1c0 [ 174.272790] ? ___might_sleep+0x1ed/0x300 [ 174.276925] ? lock_release+0xa00/0xa00 [ 174.280886] ? arch_local_save_flags+0x40/0x40 [ 174.285455] ? check_preemption_disabled+0x48/0x280 [ 174.290466] ? __might_sleep+0x95/0x190 [ 174.294430] __alloc_pages_nodemask+0xa89/0xde0 [ 174.299086] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 174.304098] ? cache_grow_begin+0x5a3/0x8c0 [ 174.308406] ? lockdep_hardirqs_on+0x421/0x5c0 [ 174.313147] ? trace_hardirqs_on+0xbd/0x310 [ 174.317455] ? fallback_alloc+0x203/0x2e0 [ 174.321603] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 174.327037] ? ____cache_alloc_node+0x16b/0x1e0 [ 174.331697] ? lock_downgrade+0x900/0x900 [ 174.335835] cache_grow_begin+0x91/0x8c0 [ 174.339881] ? do_raw_spin_unlock+0xa7/0x330 [ 174.344280] fallback_alloc+0x203/0x2e0 [ 174.348251] ____cache_alloc_node+0x1c7/0x1e0 [ 174.352745] kmem_cache_alloc+0x1f6/0x730 [ 174.356880] ? cap_capable+0x1f9/0x260 [ 174.360762] getname_flags+0xd0/0x590 [ 174.364563] user_path_mountpoint_at+0x27/0x40 [ 174.369133] ksys_umount+0x1c5/0x13b0 [ 174.372928] ? __detach_mounts+0x430/0x430 [ 174.377149] ? lock_downgrade+0x900/0x900 [ 174.381306] ? kasan_check_read+0x11/0x20 [ 174.385440] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 174.390717] ? rcu_read_unlock_special+0x370/0x370 [ 174.395645] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 174.401676] ? check_preemption_disabled+0x48/0x280 [ 174.406700] ? kasan_check_write+0x14/0x20 [ 174.410926] ? up_read+0x225/0x2c0 [ 174.414457] ? up_read_non_owner+0x100/0x100 [ 174.418854] ? do_syscall_64+0x9a/0x820 [ 174.422816] ? do_syscall_64+0x9a/0x820 [ 174.426774] ? lockdep_hardirqs_on+0x421/0x5c0 [ 174.431345] ? trace_hardirqs_on+0xbd/0x310 [ 174.435652] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.441179] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 174.446533] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 174.451978] __x64_sys_umount+0x54/0x80 [ 174.455944] do_syscall_64+0x1b9/0x820 [ 174.459818] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 174.465171] ? syscall_return_slowpath+0x5e0/0x5e0 [ 174.470100] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 174.474930] ? trace_hardirqs_on_caller+0x310/0x310 [ 174.479935] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 174.484955] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.490479] ? prepare_exit_to_usermode+0x291/0x3b0 [ 174.495488] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 174.500320] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 174.505508] RIP: 0033:0x449407 [ 174.508694] Code: 44 00 00 b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 5d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 3d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 174.527579] RSP: 002b:00007ffeec191568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 174.535376] RAX: ffffffffffffffda RBX: 0000000000004107 RCX: 0000000000449407 [ 174.542633] RDX: 0000000040000001 RSI: 0000000000000002 RDI: 00007ffeec1926b0 [ 174.549884] RBP: 0000000000004107 R08: 0000000000001e0f R09: 000000000072c880 [ 174.557138] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000001e6 [ 174.564391] R13: 00007ffeec1926b0 R14: 0000000000000000 R15: 0000000000000000 [ 174.574063] Mem-Info: [ 174.576823] active_anon:1381209 inactive_anon:201 isolated_anon:0 [ 174.576823] active_file:75 inactive_file:89 isolated_file:32 [ 174.576823] unevictable:0 dirty:16 writeback:0 unstable:0 [ 174.576823] slab_reclaimable:13802 slab_unreclaimable:105833 [ 174.576823] mapped:114 shmem:244 pagetables:15164 bounce:0 [ 174.576823] free:24644 free_pcp:372 free_cma:0 [ 174.611019] Node 0 active_anon:5524836kB inactive_anon:804kB active_file:300kB inactive_file:496kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:544kB dirty:64kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5363712kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 174.639415] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 174.666511] lowmem_reserve[]: 0 2816 6319 6319 [ 174.671877] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 174.760808] lowmem_reserve[]: 0 0 3503 3503 [ 174.765179] Node 0 Normal free:38864kB min:37376kB low:46720kB high:56064kB active_anon:2840648kB inactive_anon:804kB active_file:300kB inactive_file:1000kB unevictable:0kB writepending:64kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:66560kB pagetables:42624kB bounce:0kB free_pcp:388kB local_pcp:328kB free_cma:0kB [ 174.851749] lowmem_reserve[]: 0 0 0 0 [ 174.855597] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 174.900811] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 174.943679] Node 0 Normal: 2*4kB (UM) 261*8kB (MH) 1054*16kB (UME) 159*32kB (UME) 66*64kB (UME) 23*128kB (UM) 9*256kB (UME) 1*512kB (M) 0*1024kB 2*2048kB (M) 0*4096kB = 38128kB [ 174.981604] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 174.990484] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 175.020815] 713 total pagecache pages [ 175.024737] 0 pages in swap cache [ 175.028189] Swap cache stats: add 0, delete 0, find 0/0 [ 175.050830] Free swap = 0kB [ 175.053989] Total swap = 0kB [ 175.057004] 1965979 pages RAM [ 175.060116] 0 pages HighMem/MovableOnly [ 175.070812] 343420 pages reserved [ 175.074283] 0 pages cma reserved [ 175.077652] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7722,uid=0 [ 175.096913] Out of memory: Kill process 7722 (syz-executor090) score 0 or sacrifice child [ 175.105471] Killed process 7722 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:16kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 177.238574] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 177.250393] CPU: 1 PID: 7692 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 177.258993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 177.268379] Call Trace: [ 177.270977] dump_stack+0x1d3/0x2c6 [ 177.274607] ? dump_stack_print_info.cold.1+0x20/0x20 [ 177.279793] dump_header+0x253/0x1239 [ 177.283580] ? mark_held_locks+0x130/0x130 [ 177.287807] ? pagefault_out_of_memory+0x19d/0x19d [ 177.292727] ? mark_held_locks+0x130/0x130 [ 177.296952] ? mark_held_locks+0x130/0x130 [ 177.301173] ? __lock_acquire+0x62f/0x4c20 [ 177.305391] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 177.310918] ? kasan_check_write+0x14/0x20 [ 177.315147] ? graph_lock+0x270/0x270 [ 177.318938] ? print_usage_bug+0xc0/0xc0 [ 177.322988] ? __switch_to_asm+0x40/0x70 [ 177.327043] ? print_usage_bug+0xc0/0xc0 [ 177.331089] ? __switch_to_asm+0x40/0x70 [ 177.335134] ? __switch_to_asm+0x34/0x70 [ 177.339184] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 177.344708] ? find_held_lock+0x36/0x1c0 [ 177.348761] ? mark_held_locks+0xc7/0x130 [ 177.352897] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 177.358078] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 177.363291] ? lockdep_hardirqs_on+0x421/0x5c0 [ 177.367869] ? trace_hardirqs_on+0xbd/0x310 [ 177.372177] ? kasan_check_read+0x11/0x20 [ 177.376308] ? ___ratelimit+0x36f/0x655 [ 177.380271] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 177.385710] ? trace_hardirqs_on+0x310/0x310 [ 177.390106] ? lock_downgrade+0x900/0x900 [ 177.394242] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 177.399329] ? ___ratelimit+0xaa/0x655 [ 177.403207] ? idr_get_free+0xf70/0xf70 [ 177.407166] ? kasan_check_read+0x11/0x20 [ 177.411308] oom_kill_process.cold.27+0x10/0x8f9 [ 177.416050] ? graph_lock+0x270/0x270 [ 177.419841] ? __rcu_read_unlock+0x205/0x210 [ 177.424236] ? trace_hardirqs_on+0x310/0x310 [ 177.428634] ? oom_evaluate_task+0x540/0x540 [ 177.433035] ? find_held_lock+0x36/0x1c0 [ 177.437087] ? out_of_memory+0xcc5/0x1480 [ 177.441223] ? lock_downgrade+0x900/0x900 [ 177.445355] ? check_preemption_disabled+0x48/0x280 [ 177.450364] ? __rcu_read_unlock+0x205/0x210 [ 177.454761] ? rcu_read_unlock_special+0x370/0x370 [ 177.459680] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 177.464681] ? oom_evaluate_task+0x302/0x540 [ 177.469078] out_of_memory+0x8ba/0x1480 [ 177.473047] ? oom_killer_disable+0x3a0/0x3a0 [ 177.477536] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 177.482453] ? __ww_mutex_check_waiters+0x160/0x160 [ 177.487463] __alloc_pages_slowpath+0x22f7/0x2d90 [ 177.492308] ? warn_alloc+0x120/0x120 [ 177.496095] ? mark_held_locks+0x130/0x130 [ 177.500318] ? lru_cache_add+0xa50/0xa50 [ 177.504378] ? warn_alloc+0x120/0x120 [ 177.508167] ? find_held_lock+0x36/0x1c0 [ 177.512218] ? print_usage_bug+0xc0/0xc0 [ 177.516267] ? print_usage_bug+0xc0/0xc0 [ 177.520316] ? put_page+0x1bb/0x280 [ 177.523929] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 177.529550] ? should_fail+0x22d/0xd01 [ 177.533422] ? graph_lock+0x270/0x270 [ 177.537218] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 177.542312] ? find_held_lock+0x36/0x1c0 [ 177.546369] ? ___might_sleep+0x1ed/0x300 [ 177.550501] ? lock_release+0xa00/0xa00 [ 177.554464] ? arch_local_save_flags+0x40/0x40 [ 177.559031] ? check_preemption_disabled+0x48/0x280 [ 177.564037] ? __might_sleep+0x95/0x190 [ 177.568554] __alloc_pages_nodemask+0xa89/0xde0 [ 177.573217] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 177.578232] ? cache_grow_begin+0x5a3/0x8c0 [ 177.582544] ? lockdep_hardirqs_on+0x421/0x5c0 [ 177.587109] ? trace_hardirqs_on+0xbd/0x310 [ 177.591421] ? fallback_alloc+0x203/0x2e0 [ 177.595555] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 177.600991] ? ____cache_alloc_node+0x16b/0x1e0 [ 177.605651] ? lock_downgrade+0x900/0x900 [ 177.609790] cache_grow_begin+0x91/0x8c0 [ 177.613859] ? do_raw_spin_unlock+0xa7/0x330 [ 177.618255] fallback_alloc+0x203/0x2e0 [ 177.622217] ____cache_alloc_node+0x1c7/0x1e0 [ 177.626698] kmem_cache_alloc+0x1f6/0x730 [ 177.630831] ? cap_capable+0x1f9/0x260 [ 177.634711] getname_flags+0xd0/0x590 [ 177.638500] user_path_mountpoint_at+0x27/0x40 [ 177.643070] ksys_umount+0x1c5/0x13b0 [ 177.646862] ? __detach_mounts+0x430/0x430 [ 177.651082] ? lock_downgrade+0x900/0x900 [ 177.655216] ? kasan_check_read+0x11/0x20 [ 177.659371] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 177.664637] ? rcu_read_unlock_special+0x370/0x370 [ 177.669570] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 177.675093] ? check_preemption_disabled+0x48/0x280 [ 177.680097] ? kasan_check_write+0x14/0x20 [ 177.684318] ? up_read+0x225/0x2c0 [ 177.687933] ? up_read_non_owner+0x100/0x100 [ 177.692333] ? do_syscall_64+0x9a/0x820 [ 177.696296] ? do_syscall_64+0x9a/0x820 [ 177.700252] ? lockdep_hardirqs_on+0x421/0x5c0 [ 177.704819] ? trace_hardirqs_on+0xbd/0x310 [ 177.709126] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 177.714654] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 177.720009] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 177.725451] __x64_sys_umount+0x54/0x80 [ 177.729413] do_syscall_64+0x1b9/0x820 [ 177.733285] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 177.738743] ? syscall_return_slowpath+0x5e0/0x5e0 [ 177.743659] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 177.748486] ? trace_hardirqs_on_caller+0x310/0x310 [ 177.753490] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 177.758507] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 177.764032] ? prepare_exit_to_usermode+0x291/0x3b0 [ 177.769036] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 177.773872] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 177.779050] RIP: 0033:0x449407 [ 177.782231] Code: 44 00 00 b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 5d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 3d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 177.801123] RSP: 002b:00007ffeec191568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 177.808901] RAX: ffffffffffffffda RBX: 000000000000412c RCX: 0000000000449407 [ 177.816153] RDX: 0000000040000001 RSI: 0000000000000002 RDI: 00007ffeec1926b0 [ 177.823420] RBP: 000000000000412c R08: 0000000000001e0c R09: 000000000072c880 [ 177.830673] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000020e [ 177.837929] R13: 00007ffeec1926b0 R14: 0000000000000000 R15: 0000000000000000 [ 177.871233] Mem-Info: [ 177.873763] active_anon:1380875 inactive_anon:201 isolated_anon:0 [ 177.873763] active_file:28 inactive_file:259 isolated_file:43 [ 177.873763] unevictable:0 dirty:6 writeback:0 unstable:0 [ 177.873763] slab_reclaimable:13826 slab_unreclaimable:105770 [ 177.873763] mapped:180 shmem:244 pagetables:15228 bounce:0 [ 177.873763] free:24678 free_pcp:268 free_cma:0 [ 177.908181] Node 0 active_anon:5523500kB inactive_anon:804kB active_file:112kB inactive_file:1136kB unevictable:0kB isolated(anon):0kB isolated(file):172kB mapped:920kB dirty:24kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5361664kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 177.937280] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 177.964549] lowmem_reserve[]: 0 2816 6319 6319 [ 177.970088] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 178.034201] lowmem_reserve[]: 0 0 3503 3503 [ 178.045437] Node 0 Normal free:37308kB min:37376kB low:46720kB high:56064kB active_anon:2839312kB inactive_anon:804kB active_file:112kB inactive_file:1244kB unevictable:0kB writepending:24kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:66976kB pagetables:42880kB bounce:0kB free_pcp:1384kB local_pcp:724kB free_cma:0kB [ 178.137629] lowmem_reserve[]: 0 0 0 0 [ 178.149435] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 178.178812] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 178.221991] Node 0 Normal: 3*4kB (UME) 70*8kB (UMH) 998*16kB (UM) 157*32kB (UME) 66*64kB (UM) 22*128kB (M) 8*256kB (UM) 1*512kB (M) 0*1024kB 3*2048kB (M) 0*4096kB = 37308kB [ 178.254803] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 178.273721] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 178.292513] 780 total pagecache pages [ 178.299719] 0 pages in swap cache [ 178.307747] Swap cache stats: add 0, delete 0, find 0/0 [ 178.313398] Free swap = 0kB [ 178.316477] Total swap = 0kB [ 178.319553] 1965979 pages RAM [ 178.323277] 0 pages HighMem/MovableOnly [ 178.327313] 343420 pages reserved [ 178.330988] 0 pages cma reserved [ 178.334424] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7727,uid=0 [ 178.348028] Out of memory: Kill process 7727 (syz-executor090) score 0 or sacrifice child [ 178.356576] Killed process 7727 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:16kB, shmem-rss:0kB [ 178.369449] oom_reaper: reaped process 7727 (syz-executor090), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 184.755093] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 184.775733] CPU: 1 PID: 7696 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 184.784350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 184.793704] Call Trace: [ 184.796300] dump_stack+0x1d3/0x2c6 [ 184.799935] ? dump_stack_print_info.cold.1+0x20/0x20 [ 184.805138] dump_header+0x253/0x1239 [ 184.808944] ? mark_held_locks+0x130/0x130 [ 184.813205] ? pagefault_out_of_memory+0x19d/0x19d [ 184.818253] ? mark_held_locks+0x130/0x130 [ 184.822501] ? mark_held_locks+0x130/0x130 [ 184.826735] ? __lock_acquire+0x62f/0x4c20 [ 184.830971] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 184.836522] ? finish_task_switch+0x1f4/0x910 [ 184.841023] ? graph_lock+0x270/0x270 [ 184.844832] ? print_usage_bug+0xc0/0xc0 [ 184.848896] ? __switch_to_asm+0x40/0x70 [ 184.852958] ? print_usage_bug+0xc0/0xc0 [ 184.857020] ? __switch_to_asm+0x40/0x70 [ 184.861082] ? __switch_to_asm+0x34/0x70 [ 184.865148] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 184.870683] ? find_held_lock+0x36/0x1c0 [ 184.874739] ? mark_held_locks+0xc7/0x130 [ 184.878875] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 184.883964] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 184.889053] ? lockdep_hardirqs_on+0x421/0x5c0 [ 184.893643] ? trace_hardirqs_on+0xbd/0x310 [ 184.897953] ? kasan_check_read+0x11/0x20 [ 184.902088] ? ___ratelimit+0x36f/0x655 [ 184.906051] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 184.911493] ? trace_hardirqs_on+0x310/0x310 [ 184.915886] ? lock_downgrade+0x900/0x900 [ 184.920025] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 184.925203] ? ___ratelimit+0xaa/0x655 [ 184.929080] ? idr_get_free+0xf70/0xf70 [ 184.933071] ? kasan_check_read+0x11/0x20 [ 184.937214] oom_kill_process.cold.27+0x10/0x8f9 [ 184.941959] ? graph_lock+0x270/0x270 [ 184.945747] ? __rcu_read_unlock+0x205/0x210 [ 184.950144] ? trace_hardirqs_on+0x310/0x310 [ 184.954543] ? oom_evaluate_task+0x540/0x540 [ 184.958938] ? find_held_lock+0x36/0x1c0 [ 184.962991] ? out_of_memory+0xcc5/0x1480 [ 184.967122] ? lock_downgrade+0x900/0x900 [ 184.971255] ? check_preemption_disabled+0x48/0x280 [ 184.976259] ? __rcu_read_unlock+0x205/0x210 [ 184.980656] ? rcu_read_unlock_special+0x370/0x370 [ 184.985576] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 184.990587] ? oom_evaluate_task+0x302/0x540 [ 184.994984] out_of_memory+0x8ba/0x1480 [ 184.998952] ? oom_killer_disable+0x3a0/0x3a0 [ 185.003436] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 185.008353] ? __ww_mutex_check_waiters+0x160/0x160 [ 185.013372] __alloc_pages_slowpath+0x22f7/0x2d90 [ 185.018307] ? warn_alloc+0x120/0x120 [ 185.022097] ? mark_held_locks+0x130/0x130 [ 185.026330] ? warn_alloc+0x120/0x120 [ 185.030116] ? print_usage_bug+0xc0/0xc0 [ 185.034166] ? print_usage_bug+0xc0/0xc0 [ 185.038215] ? print_usage_bug+0xc0/0xc0 [ 185.042262] ? call_rcu+0xb/0x10 [ 185.045616] ? ext4_destroy_inode+0xf3/0x250 [ 185.050007] ? evict+0x5d8/0x980 [ 185.053361] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 185.058905] ? should_fail+0x22d/0xd01 [ 185.062778] ? graph_lock+0x270/0x270 [ 185.066583] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 185.071674] ? is_bpf_text_address+0xac/0x170 [ 185.076156] ? find_held_lock+0x36/0x1c0 [ 185.080218] ? ___might_sleep+0x1ed/0x300 [ 185.084352] ? lock_release+0xa00/0xa00 [ 185.088318] ? arch_local_save_flags+0x40/0x40 [ 185.092888] ? check_preemption_disabled+0x48/0x280 [ 185.097897] ? __might_sleep+0x95/0x190 [ 185.101866] __alloc_pages_nodemask+0xa89/0xde0 [ 185.106527] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 185.111533] ? do_rmdir+0x20a/0x630 [ 185.115158] ? do_syscall_64+0x1b9/0x820 [ 185.119219] ? cache_grow_begin+0x5a3/0x8c0 [ 185.123524] ? lockdep_hardirqs_on+0x421/0x5c0 [ 185.128095] ? trace_hardirqs_on+0xbd/0x310 [ 185.132402] ? fallback_alloc+0x203/0x2e0 [ 185.136537] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 185.141983] ? ____cache_alloc_node+0x16b/0x1e0 [ 185.146640] ? lock_downgrade+0x900/0x900 [ 185.150790] cache_grow_begin+0x91/0x8c0 [ 185.154837] ? do_raw_spin_unlock+0xa7/0x330 [ 185.159234] fallback_alloc+0x203/0x2e0 [ 185.163201] ____cache_alloc_node+0x1c7/0x1e0 [ 185.167690] kmem_cache_alloc+0x1f6/0x730 [ 185.171840] ? putname+0xf7/0x130 [ 185.175294] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 185.180844] getname_flags+0xd0/0x590 [ 185.184633] do_mkdirat+0xc5/0x310 [ 185.188182] ? __ia32_sys_mknod+0xb0/0xb0 [ 185.192323] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 185.197670] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 185.203111] __x64_sys_mkdir+0x5c/0x80 [ 185.206987] do_syscall_64+0x1b9/0x820 [ 185.210859] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 185.216214] ? syscall_return_slowpath+0x5e0/0x5e0 [ 185.221130] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.225958] ? trace_hardirqs_on_caller+0x310/0x310 [ 185.230960] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 185.235965] ? prepare_exit_to_usermode+0x291/0x3b0 [ 185.240973] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.245808] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 185.250981] RIP: 0033:0x445ed7 [ 185.254173] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 8d 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 6d 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 185.273153] RSP: 002b:00007ffeec192658 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 185.280845] RAX: ffffffffffffffda RBX: 0000000000004183 RCX: 0000000000445ed7 [ 185.288101] RDX: 00007ffeec1926b5 RSI: 00000000000001ff RDI: 00007ffeec1926b0 [ 185.295358] RBP: 0000000000004183 R08: 0000000000000000 R09: 0000000000000005 [ 185.302612] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000000001f2 [ 185.309864] R13: 000000000002c991 R14: 0000000000000000 R15: 0000000000000000 [ 185.318813] Mem-Info: [ 185.322018] active_anon:1380656 inactive_anon:201 isolated_anon:0 [ 185.322018] active_file:20 inactive_file:112 isolated_file:26 [ 185.322018] unevictable:0 dirty:0 writeback:0 unstable:0 [ 185.322018] slab_reclaimable:13867 slab_unreclaimable:105644 [ 185.322018] mapped:8 shmem:244 pagetables:15330 bounce:0 [ 185.322018] free:24812 free_pcp:340 free_cma:0 [ 185.355345] Node 0 active_anon:5522624kB inactive_anon:804kB active_file:80kB inactive_file:948kB unevictable:0kB isolated(anon):0kB isolated(file):252kB mapped:432kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5359616kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 185.383056] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 185.414337] lowmem_reserve[]: 0 2816 6319 6319 [ 185.419279] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 185.449413] lowmem_reserve[]: 0 0 3503 3503 [ 185.453900] Node 0 Normal free:38348kB min:37376kB low:46720kB high:56064kB active_anon:2838436kB inactive_anon:804kB active_file:584kB inactive_file:392kB unevictable:0kB writepending:0kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:67648kB pagetables:43288kB bounce:0kB free_pcp:1604kB local_pcp:692kB free_cma:0kB [ 185.483480] lowmem_reserve[]: 0 0 0 0 [ 185.487365] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 185.501615] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 185.522622] Node 0 Normal: 0*4kB 88*8kB (UMH) 957*16kB (UME) 156*32kB (UM) 65*64kB (UM) 23*128kB (ME) 9*256kB (UME) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (M) 0*4096kB = 38096kB [ 185.540363] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 185.549344] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 185.558205] 608 total pagecache pages [ 185.562937] 0 pages in swap cache [ 185.566817] Swap cache stats: add 0, delete 0, find 0/0 [ 185.573303] Free swap = 0kB [ 185.576389] Total swap = 0kB [ 185.579465] 1965979 pages RAM [ 185.582678] 0 pages HighMem/MovableOnly [ 185.586888] 343420 pages reserved [ 185.590391] 0 pages cma reserved [ 185.593863] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7728,uid=0 executing program [ 185.607639] Out of memory: Kill process 7728 (syz-executor090) score 0 or sacrifice child [ 185.616305] Killed process 7728 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 189.155414] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 189.171260] CPU: 1 PID: 16830 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 189.179961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 189.189320] Call Trace: [ 189.191923] dump_stack+0x1d3/0x2c6 [ 189.195570] ? dump_stack_print_info.cold.1+0x20/0x20 [ 189.200771] dump_header+0x253/0x1239 [ 189.204578] ? mark_held_locks+0x130/0x130 [ 189.208829] ? pagefault_out_of_memory+0x19d/0x19d [ 189.213772] ? mark_held_locks+0x130/0x130 [ 189.218015] ? mark_held_locks+0x130/0x130 [ 189.222256] ? __lock_acquire+0x62f/0x4c20 [ 189.226491] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 189.232051] ? finish_task_switch+0x1f4/0x910 [ 189.236550] ? graph_lock+0x270/0x270 [ 189.240361] ? print_usage_bug+0xc0/0xc0 [ 189.244427] ? __switch_to_asm+0x40/0x70 [ 189.248493] ? print_usage_bug+0xc0/0xc0 [ 189.252557] ? __switch_to_asm+0x40/0x70 [ 189.256623] ? __switch_to_asm+0x34/0x70 [ 189.260688] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 189.266231] ? find_held_lock+0x36/0x1c0 [ 189.270303] ? mark_held_locks+0xc7/0x130 [ 189.274454] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 189.279660] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 189.284766] ? lockdep_hardirqs_on+0x421/0x5c0 [ 189.289352] ? trace_hardirqs_on+0xbd/0x310 [ 189.293676] ? kasan_check_read+0x11/0x20 [ 189.297823] ? ___ratelimit+0x36f/0x655 [ 189.301808] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 189.307264] ? trace_hardirqs_on+0x310/0x310 [ 189.311677] ? lock_downgrade+0x900/0x900 [ 189.315838] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 189.320952] ? ___ratelimit+0xaa/0x655 [ 189.324853] ? idr_get_free+0xf70/0xf70 [ 189.328844] ? kasan_check_read+0x11/0x20 [ 189.332999] oom_kill_process.cold.27+0x10/0x8f9 [ 189.337742] ? graph_lock+0x270/0x270 [ 189.341530] ? __rcu_read_unlock+0x205/0x210 [ 189.345932] ? trace_hardirqs_on+0x310/0x310 [ 189.350332] ? oom_evaluate_task+0x540/0x540 [ 189.354728] ? find_held_lock+0x36/0x1c0 [ 189.358778] ? out_of_memory+0xcc5/0x1480 [ 189.362918] ? lock_downgrade+0x900/0x900 [ 189.367058] ? check_preemption_disabled+0x48/0x280 [ 189.372090] ? __rcu_read_unlock+0x205/0x210 [ 189.376513] ? rcu_read_unlock_special+0x370/0x370 [ 189.381436] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 189.386444] ? oom_evaluate_task+0x302/0x540 [ 189.390853] out_of_memory+0x8ba/0x1480 [ 189.394829] ? oom_killer_disable+0x3a0/0x3a0 [ 189.399315] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 189.404235] ? __ww_mutex_check_waiters+0x160/0x160 [ 189.409240] __alloc_pages_slowpath+0x22f7/0x2d90 [ 189.414093] ? warn_alloc+0x120/0x120 [ 189.417887] ? mark_held_locks+0x130/0x130 [ 189.422110] ? warn_alloc+0x120/0x120 [ 189.425899] ? print_usage_bug+0xc0/0xc0 [ 189.429956] ? print_usage_bug+0xc0/0xc0 [ 189.434012] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 189.439548] ? should_fail+0x22d/0xd01 [ 189.443431] ? graph_lock+0x270/0x270 [ 189.447223] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 189.452358] ? find_held_lock+0x36/0x1c0 [ 189.456414] ? _raw_spin_unlock+0x2c/0x50 [ 189.460557] ? ___might_sleep+0x1ed/0x300 [ 189.464712] ? lock_release+0xa00/0xa00 [ 189.468687] ? arch_local_save_flags+0x40/0x40 [ 189.473260] ? check_preemption_disabled+0x48/0x280 [ 189.478278] ? __might_sleep+0x95/0x190 [ 189.482249] __alloc_pages_nodemask+0xa89/0xde0 [ 189.486906] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 189.491944] ? cache_grow_begin+0x5a3/0x8c0 [ 189.496254] ? lockdep_hardirqs_on+0x421/0x5c0 [ 189.500920] ? trace_hardirqs_on+0xbd/0x310 [ 189.505226] ? fallback_alloc+0x203/0x2e0 [ 189.509358] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 189.514801] ? ____cache_alloc_node+0x16b/0x1e0 [ 189.519478] ? lock_downgrade+0x900/0x900 [ 189.523629] cache_grow_begin+0x91/0x8c0 [ 189.527768] ? do_raw_spin_unlock+0xa7/0x330 [ 189.532164] fallback_alloc+0x203/0x2e0 [ 189.536125] ____cache_alloc_node+0x1c7/0x1e0 [ 189.540607] kmem_cache_alloc+0x1f6/0x730 [ 189.544739] ? check_preemption_disabled+0x48/0x280 [ 189.549763] getname_flags+0xd0/0x590 [ 189.553552] user_path_at_empty+0x2d/0x50 [ 189.557684] ksys_chdir+0xc0/0x230 [ 189.561219] ? __ia32_sys_access+0x80/0x80 [ 189.565447] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 189.570896] __x64_sys_chdir+0x31/0x40 [ 189.574774] do_syscall_64+0x1b9/0x820 [ 189.578645] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 189.583994] ? syscall_return_slowpath+0x5e0/0x5e0 [ 189.588915] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 189.593745] ? trace_hardirqs_on_caller+0x310/0x310 [ 189.598753] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 189.603762] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 189.609284] ? prepare_exit_to_usermode+0x291/0x3b0 [ 189.614298] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 189.619131] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 189.624303] RIP: 0033:0x4460e7 [ 189.627488] Code: 00 00 8b 44 24 08 e9 67 ff ff ff 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d8 0f 1f 44 00 00 b8 50 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 189.646394] RSP: 002b:00007ffeec192658 EFLAGS: 00000246 ORIG_RAX: 0000000000000050 [ 189.654086] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004460e7 [ 189.661338] RDX: 0000000000000001 RSI: 00000000006db0a0 RDI: 00007ffeec1926b0 [ 189.668695] RBP: 0000000000000000 R08: 0000000000001e10 R09: 000000000072c880 [ 189.676066] R10: 000000000072cb50 R11: 0000000000000246 R12: 00000000000001f6 [ 189.683321] R13: 000000000002d69f R14: 0000000000000000 R15: 0000000000000000 [ 189.693217] Mem-Info: [ 189.695802] active_anon:1380246 inactive_anon:201 isolated_anon:0 [ 189.695802] active_file:30 inactive_file:168 isolated_file:0 [ 189.695802] unevictable:0 dirty:0 writeback:0 unstable:0 [ 189.695802] slab_reclaimable:13891 slab_unreclaimable:105973 [ 189.695802] mapped:33 shmem:244 pagetables:15367 bounce:0 [ 189.695802] free:24755 free_pcp:234 free_cma:0 [ 189.729373] Node 0 active_anon:5520984kB inactive_anon:804kB active_file:120kB inactive_file:772kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:232kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5357568kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 189.761400] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 189.792122] lowmem_reserve[]: 0 2816 6319 6319 [ 189.797233] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 189.831196] lowmem_reserve[]: 0 0 3503 3503 executing program executing program executing program executing program [ 189.836824] Node 0 Normal free:38436kB min:37376kB low:46720kB high:56064kB active_anon:2836796kB inactive_anon:804kB active_file:624kB inactive_file:1480kB unevictable:0kB writepending:0kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:68000kB pagetables:43436kB bounce:0kB free_pcp:1292kB local_pcp:652kB free_cma:0kB [ 189.868746] lowmem_reserve[]: 0 0 0 0 [ 189.872737] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 189.886631] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 189.902806] Node 0 Normal: 3*4kB (UME) 132*8kB (UEH) 788*16kB (UME) 172*32kB (UM) 65*64kB (UM) 22*128kB (M) 8*256kB (ME) 3*512kB (UME) 2*1024kB (UE) 3*2048kB (M) 0*4096kB = 37932kB [ 189.919333] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 189.928329] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 189.937014] 1082 total pagecache pages [ 189.961005] 0 pages in swap cache [ 189.968937] Swap cache stats: add 0, delete 0, find 0/0 [ 189.990901] Free swap = 0kB [ 190.004926] Total swap = 0kB [ 190.017846] 1965979 pages RAM [ 190.030941] 0 pages HighMem/MovableOnly [ 190.048099] 343420 pages reserved [ 190.062189] 0 pages cma reserved [ 190.077291] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7733,uid=0 [ 190.112025] Out of memory: Kill process 7733 (syz-executor090) score 0 or sacrifice child executing program executing program [ 190.130487] Killed process 7733 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 195.205010] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 195.228803] CPU: 0 PID: 16917 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 195.237494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 195.246850] Call Trace: [ 195.249456] dump_stack+0x1d3/0x2c6 [ 195.253091] ? dump_stack_print_info.cold.1+0x20/0x20 [ 195.258286] ? __switch_to_asm+0x34/0x70 [ 195.262358] dump_header+0x253/0x1239 [ 195.266170] ? mark_held_locks+0x130/0x130 [ 195.270424] ? pagefault_out_of_memory+0x19d/0x19d [ 195.275357] ? mark_held_locks+0x130/0x130 [ 195.279608] ? mark_held_locks+0x130/0x130 [ 195.283841] ? __lock_acquire+0x62f/0x4c20 [ 195.288079] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.293721] ? _raw_spin_unlock_irq+0x60/0x80 [ 195.298219] ? graph_lock+0x270/0x270 [ 195.302023] ? print_usage_bug+0xc0/0xc0 [ 195.306085] ? __switch_to_asm+0x40/0x70 [ 195.310148] ? print_usage_bug+0xc0/0xc0 [ 195.314208] ? __switch_to_asm+0x40/0x70 [ 195.318275] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.323818] ? find_held_lock+0x36/0x1c0 [ 195.327887] ? mark_held_locks+0xc7/0x130 [ 195.332039] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 195.337149] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 195.342260] ? lockdep_hardirqs_on+0x421/0x5c0 [ 195.346844] ? trace_hardirqs_on+0xbd/0x310 [ 195.351174] ? kasan_check_read+0x11/0x20 [ 195.355309] ? ___ratelimit+0x36f/0x655 [ 195.359270] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 195.364706] ? trace_hardirqs_on+0x310/0x310 [ 195.369103] ? lock_downgrade+0x900/0x900 [ 195.373239] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 195.378329] ? ___ratelimit+0xaa/0x655 [ 195.382204] ? idr_get_free+0xf70/0xf70 [ 195.386163] ? kasan_check_read+0x11/0x20 [ 195.390304] oom_kill_process.cold.27+0x10/0x8f9 [ 195.395047] ? graph_lock+0x270/0x270 [ 195.398838] ? __rcu_read_unlock+0x205/0x210 [ 195.403236] ? trace_hardirqs_on+0x310/0x310 [ 195.407633] ? oom_evaluate_task+0x540/0x540 [ 195.412030] ? find_held_lock+0x36/0x1c0 [ 195.416081] ? out_of_memory+0xcc5/0x1480 [ 195.420215] ? lock_downgrade+0x900/0x900 [ 195.424348] ? check_preemption_disabled+0x48/0x280 [ 195.429358] ? __rcu_read_unlock+0x205/0x210 [ 195.433777] ? rcu_read_unlock_special+0x370/0x370 [ 195.438698] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 195.443703] ? oom_evaluate_task+0x302/0x540 [ 195.448101] out_of_memory+0x8ba/0x1480 [ 195.452066] ? oom_killer_disable+0x3a0/0x3a0 [ 195.456549] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 195.461467] ? __ww_mutex_check_waiters+0x160/0x160 [ 195.466476] __alloc_pages_slowpath+0x22f7/0x2d90 [ 195.471322] ? warn_alloc+0x120/0x120 [ 195.475107] ? __alloc_pages_slowpath+0x4cc/0x2d90 [ 195.480025] ? warn_alloc+0x120/0x120 [ 195.483829] ? preempt_count_add+0xbc/0x1b0 [ 195.488134] ? get_page_from_freelist+0x18c1/0x4c00 [ 195.493137] ? print_usage_bug+0xc0/0xc0 [ 195.497186] ? print_usage_bug+0xc0/0xc0 [ 195.501240] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 195.506766] ? should_fail+0x22d/0xd01 [ 195.510639] ? graph_lock+0x270/0x270 [ 195.514433] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 195.519520] ? __lock_acquire+0x62f/0x4c20 [ 195.523743] ? find_held_lock+0x36/0x1c0 [ 195.527804] ? ___might_sleep+0x1ed/0x300 [ 195.531934] ? lock_release+0xa00/0xa00 [ 195.535896] ? arch_local_save_flags+0x40/0x40 [ 195.540465] ? check_preemption_disabled+0x48/0x280 [ 195.545471] ? __might_sleep+0x95/0x190 [ 195.549433] __alloc_pages_nodemask+0xa89/0xde0 [ 195.554107] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 195.559118] ? cache_grow_begin+0x5a3/0x8c0 [ 195.563441] ? lockdep_hardirqs_on+0x421/0x5c0 [ 195.568361] ? trace_hardirqs_on+0xbd/0x310 [ 195.572669] ? fallback_alloc+0x203/0x2e0 [ 195.576803] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 195.582236] ? ____cache_alloc_node+0x16b/0x1e0 [ 195.586894] ? lock_downgrade+0x900/0x900 [ 195.591030] cache_grow_begin+0x91/0x8c0 [ 195.595078] ? do_raw_spin_unlock+0xa7/0x330 [ 195.599477] fallback_alloc+0x203/0x2e0 [ 195.603438] ____cache_alloc_node+0x1c7/0x1e0 [ 195.607923] kmem_cache_alloc_node+0xe3/0x730 [ 195.612415] copy_process+0x2027/0x8780 [ 195.616387] ? warn_alloc+0x120/0x120 [ 195.620170] ? __lock_acquire+0x62f/0x4c20 [ 195.624392] ? page_add_new_anon_rmap+0xb70/0xb70 [ 195.629232] ? __cleanup_sighand+0x70/0x70 [ 195.633460] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.638983] ? wakeup_kswapd+0x13d/0x930 [ 195.643030] ? __pagevec_lru_add+0x30/0x30 [ 195.647263] ? isolate_lru_page+0x22e0/0x22e0 [ 195.651765] ? graph_lock+0x270/0x270 [ 195.655555] ? print_usage_bug+0xc0/0xc0 [ 195.659600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.665124] ? check_preemption_disabled+0x48/0x280 [ 195.670140] ? __lock_is_held+0xb5/0x140 [ 195.674191] ? __lock_acquire+0x62f/0x4c20 [ 195.678415] ? wake_all_kswapds+0x150/0x300 [ 195.682722] ? flush_tlb_func_common.constprop.16+0x923/0xd80 [ 195.688598] ? mem_cgroup_update_lru_size+0xd0/0xd0 [ 195.693598] ? mark_held_locks+0x130/0x130 [ 195.697820] ? print_usage_bug+0xc0/0xc0 [ 195.701875] ? warn_alloc+0x120/0x120 [ 195.705659] ? mark_held_locks+0x130/0x130 [ 195.709894] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 195.714902] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.720424] ? check_preemption_disabled+0x48/0x280 [ 195.725518] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.731052] ? __lru_cache_add+0x2ff/0x4e0 [ 195.735385] ? __pagevec_lru_add+0x30/0x30 [ 195.739608] ? mark_held_locks+0x130/0x130 [ 195.743833] ? __lock_acquire+0x62f/0x4c20 [ 195.748073] ? lru_cache_add+0x417/0xa50 [ 195.752134] ? lru_cache_add_file+0x20/0x20 [ 195.756445] ? print_usage_bug+0xc0/0xc0 [ 195.760494] ? rcu_read_unlock_special+0x370/0x370 [ 195.765413] ? check_preemption_disabled+0x48/0x280 [ 195.770417] ? __this_cpu_preempt_check+0x1c/0x20 [ 195.775334] ? mem_cgroup_event_ratelimit.isra.53+0x51/0x110 [ 195.781130] ? mark_held_locks+0xc7/0x130 [ 195.785264] ? mem_cgroup_commit_charge+0x275/0x9d0 [ 195.790262] ? mem_cgroup_commit_charge+0x275/0x9d0 [ 195.795267] ? graph_lock+0x270/0x270 [ 195.799068] ? lru_cache_add+0xa50/0xa50 [ 195.803116] ? lock_downgrade+0x900/0x900 [ 195.807250] ? check_preemption_disabled+0x48/0x280 [ 195.812254] ? find_held_lock+0x36/0x1c0 [ 195.816394] ? __handle_mm_fault+0x2c14/0x55f0 [ 195.820963] ? lock_downgrade+0x900/0x900 [ 195.825104] ? kasan_check_read+0x11/0x20 [ 195.829237] ? do_raw_spin_unlock+0xa7/0x330 [ 195.833635] ? do_raw_spin_trylock+0x270/0x270 [ 195.838201] ? migration_entry_to_page+0x550/0x550 [ 195.843114] ? pte_offset_kernel+0xf0/0xf0 [ 195.847350] ? _raw_spin_unlock+0x2c/0x50 [ 195.851489] ? __handle_mm_fault+0x9b4/0x55f0 [ 195.855975] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 195.860805] ? graph_lock+0x270/0x270 [ 195.864597] ? print_usage_bug+0xc0/0xc0 [ 195.868643] ? graph_lock+0x270/0x270 [ 195.872431] ? graph_lock+0x270/0x270 [ 195.876234] ? find_held_lock+0x36/0x1c0 [ 195.880285] _do_fork+0x1cb/0x11d0 [ 195.883816] ? fork_idle+0x1d0/0x1d0 [ 195.887516] ? kasan_check_read+0x11/0x20 [ 195.891822] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 195.897084] ? rcu_read_unlock_special+0x370/0x370 [ 195.901999] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 195.907522] ? check_preemption_disabled+0x48/0x280 [ 195.912530] ? kasan_check_write+0x14/0x20 [ 195.916752] ? up_read+0x225/0x2c0 [ 195.920277] ? up_read_non_owner+0x100/0x100 [ 195.924688] ? do_syscall_64+0x9a/0x820 [ 195.928648] ? do_syscall_64+0x9a/0x820 [ 195.932611] ? lockdep_hardirqs_on+0x421/0x5c0 [ 195.937178] ? trace_hardirqs_on+0xbd/0x310 [ 195.941487] ? mprotect_fixup+0xc60/0xc60 [ 195.945625] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 195.950973] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 195.956414] __x64_sys_clone+0xbf/0x150 [ 195.960375] do_syscall_64+0x1b9/0x820 [ 195.964247] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 195.969598] ? syscall_return_slowpath+0x5e0/0x5e0 [ 195.974514] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 195.979344] ? trace_hardirqs_on_caller+0x310/0x310 [ 195.984350] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 195.989355] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 195.994878] ? prepare_exit_to_usermode+0x291/0x3b0 [ 195.999882] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 196.004722] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 196.009893] RIP: 0033:0x449389 [ 196.013074] Code: ff 48 85 f6 0f 84 e7 dd fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c be dd fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 [ 196.031961] RSP: 002b:00007ffeec192528 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 196.039652] RAX: ffffffffffffffda RBX: 00007fc7f3597700 RCX: 0000000000449389 [ 196.046906] RDX: 00007fc7f35979d0 RSI: 00007fc7f3596e70 RDI: 00000000003d0f00 [ 196.054159] RBP: 00007ffeec192670 R08: 00007fc7f3597700 R09: 00007fc7f3597700 [ 196.061423] R10: 00007fc7f35979d0 R11: 0000000000000202 R12: 0000000000000000 [ 196.068678] R13: 00007ffeec1925df R14: 00007fc7f35979c0 R15: 00000000006dcd2c [ 196.078598] Mem-Info: [ 196.081456] active_anon:1380043 inactive_anon:201 isolated_anon:0 [ 196.081456] active_file:41 inactive_file:157 isolated_file:32 [ 196.081456] unevictable:0 dirty:4 writeback:0 unstable:0 [ 196.081456] slab_reclaimable:13957 slab_unreclaimable:105678 [ 196.081456] mapped:140 shmem:244 pagetables:15475 bounce:0 [ 196.081456] free:24702 free_pcp:313 free_cma:0 [ 196.115602] Node 0 active_anon:5520172kB inactive_anon:804kB active_file:164kB inactive_file:728kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:560kB dirty:16kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5355520kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 196.144223] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 196.171468] lowmem_reserve[]: 0 2816 6319 6319 [ 196.176168] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 196.215001] lowmem_reserve[]: 0 0 3503 3503 [ 196.219369] Node 0 Normal free:38412kB min:37376kB low:46720kB high:56064kB active_anon:2835984kB inactive_anon:804kB active_file:164kB inactive_file:1132kB unevictable:0kB writepending:16kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:68544kB pagetables:43868kB bounce:0kB free_pcp:1120kB local_pcp:660kB free_cma:0kB [ 196.250245] lowmem_reserve[]: 0 0 0 0 [ 196.254203] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 196.267897] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 196.306424] Node 0 Normal: 0*4kB 6*8kB (UH) 770*16kB (UM) 164*32kB (UME) 65*64kB (UM) 22*128kB (M) 7*256kB (M) 3*512kB (UME) 2*1024kB (UE) 2*2048kB (M) 1*4096kB (M) = 38160kB [ 196.332250] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 196.342023] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 196.350709] 712 total pagecache pages [ 196.354644] 0 pages in swap cache [ 196.358188] Swap cache stats: add 0, delete 0, find 0/0 [ 196.363826] Free swap = 0kB [ 196.366920] Total swap = 0kB [ 196.370001] 1965979 pages RAM [ 196.373205] 0 pages HighMem/MovableOnly [ 196.377244] 343420 pages reserved [ 196.380759] 0 pages cma reserved [ 196.384238] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7734,uid=0 [ 196.398243] Out of memory: Kill process 7734 (syz-executor090) score 0 or sacrifice child [ 196.406724] Killed process 7734 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program [ 198.905374] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 198.916986] CPU: 1 PID: 7696 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 198.925574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 198.934923] Call Trace: [ 198.937536] dump_stack+0x1d3/0x2c6 [ 198.941174] ? dump_stack_print_info.cold.1+0x20/0x20 [ 198.946368] dump_header+0x253/0x1239 [ 198.950163] ? mark_held_locks+0x130/0x130 [ 198.954404] ? pagefault_out_of_memory+0x19d/0x19d [ 198.959322] ? mark_held_locks+0x130/0x130 [ 198.963536] ? mark_held_locks+0xc7/0x130 [ 198.967673] ? mark_held_locks+0x130/0x130 [ 198.971905] ? __lock_acquire+0x62f/0x4c20 [ 198.976120] ? lockdep_hardirqs_on+0x421/0x5c0 [ 198.980807] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 198.985547] ? trace_hardirqs_off+0x310/0x310 [ 198.990113] ? kasan_check_read+0x11/0x20 [ 198.994248] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 198.999684] ? graph_lock+0x270/0x270 [ 199.003475] ? print_usage_bug+0xc0/0xc0 [ 199.007518] ? print_usage_bug+0xc0/0xc0 [ 199.011578] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 199.017206] ? find_held_lock+0x36/0x1c0 [ 199.021265] ? mark_held_locks+0xc7/0x130 [ 199.025401] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 199.030670] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 199.035759] ? lockdep_hardirqs_on+0x421/0x5c0 [ 199.040339] ? trace_hardirqs_on+0xbd/0x310 [ 199.044645] ? kasan_check_read+0x11/0x20 [ 199.048778] ? ___ratelimit+0x36f/0x655 [ 199.052796] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 199.058247] ? trace_hardirqs_on+0x310/0x310 [ 199.062641] ? lock_downgrade+0x900/0x900 [ 199.066775] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 199.071868] ? ___ratelimit+0xaa/0x655 [ 199.075748] ? idr_get_free+0xf70/0xf70 [ 199.079711] ? kasan_check_read+0x11/0x20 [ 199.083859] oom_kill_process.cold.27+0x10/0x8f9 [ 199.088605] ? graph_lock+0x270/0x270 [ 199.092401] ? __rcu_read_unlock+0x205/0x210 [ 199.096792] ? trace_hardirqs_on+0x310/0x310 [ 199.101186] ? oom_evaluate_task+0x540/0x540 [ 199.105576] ? find_held_lock+0x36/0x1c0 [ 199.109626] ? out_of_memory+0xcc5/0x1480 [ 199.113759] ? lock_downgrade+0x900/0x900 [ 199.117987] ? check_preemption_disabled+0x48/0x280 [ 199.122989] ? __rcu_read_unlock+0x205/0x210 [ 199.127404] ? rcu_read_unlock_special+0x370/0x370 [ 199.132342] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 199.137340] ? oom_evaluate_task+0x302/0x540 [ 199.141734] out_of_memory+0x8ba/0x1480 [ 199.145698] ? oom_killer_disable+0x3a0/0x3a0 [ 199.150179] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 199.155095] ? __ww_mutex_check_waiters+0x160/0x160 [ 199.160103] __alloc_pages_slowpath+0x22f7/0x2d90 [ 199.164949] ? warn_alloc+0x120/0x120 [ 199.168732] ? mark_held_locks+0x130/0x130 [ 199.172963] ? warn_alloc+0x120/0x120 [ 199.176759] ? graph_lock+0x270/0x270 [ 199.180551] ? graph_lock+0x270/0x270 [ 199.184333] ? print_usage_bug+0xc0/0xc0 [ 199.188379] ? print_usage_bug+0xc0/0xc0 [ 199.192512] ? find_held_lock+0x36/0x1c0 [ 199.196570] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 199.202102] ? should_fail+0x22d/0xd01 [ 199.205978] ? graph_lock+0x270/0x270 [ 199.209765] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 199.214857] ? graph_lock+0x270/0x270 [ 199.218664] ? is_bpf_text_address+0xac/0x170 [ 199.223257] ? find_held_lock+0x36/0x1c0 [ 199.227311] ? ___might_sleep+0x1ed/0x300 [ 199.231474] ? lock_release+0xa00/0xa00 [ 199.235434] ? arch_local_save_flags+0x40/0x40 [ 199.240003] ? check_preemption_disabled+0x48/0x280 [ 199.245013] ? __might_sleep+0x95/0x190 [ 199.248986] __alloc_pages_nodemask+0xa89/0xde0 [ 199.253643] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 199.258654] ? cache_grow_begin+0x5a3/0x8c0 [ 199.262974] ? lockdep_hardirqs_on+0x421/0x5c0 [ 199.267552] ? trace_hardirqs_on+0xbd/0x310 [ 199.271871] ? fallback_alloc+0x203/0x2e0 [ 199.276010] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 199.281448] ? ____cache_alloc_node+0x16b/0x1e0 [ 199.286101] ? lock_downgrade+0x900/0x900 [ 199.290236] cache_grow_begin+0x91/0x8c0 [ 199.294292] ? do_raw_spin_unlock+0xa7/0x330 [ 199.298715] fallback_alloc+0x203/0x2e0 [ 199.302681] ____cache_alloc_node+0x1c7/0x1e0 [ 199.307160] kmem_cache_alloc+0x1f6/0x730 [ 199.311302] ? sync_mm_rss+0x9a/0x1c0 [ 199.315090] getname_flags+0xd0/0x590 [ 199.318910] do_mkdirat+0xc5/0x310 [ 199.322449] ? __ia32_sys_mknod+0xb0/0xb0 [ 199.326593] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 199.331944] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 199.337393] __x64_sys_mkdir+0x5c/0x80 [ 199.341275] do_syscall_64+0x1b9/0x820 [ 199.345153] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 199.350504] ? syscall_return_slowpath+0x5e0/0x5e0 [ 199.355418] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 199.360257] ? trace_hardirqs_on_caller+0x310/0x310 [ 199.365275] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 199.370290] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 199.375831] ? prepare_exit_to_usermode+0x291/0x3b0 [ 199.380862] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 199.385704] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 199.390875] RIP: 0033:0x445ed7 [ 199.394076] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 8d 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 6d 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 199.413074] RSP: 002b:00007ffeec192658 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 199.420768] RAX: ffffffffffffffda RBX: 0000000000004218 RCX: 0000000000445ed7 [ 199.428132] RDX: 00007ffeec1926b5 RSI: 00000000000001ff RDI: 00007ffeec1926b0 [ 199.435384] RBP: 0000000000004218 R08: 0000000000000000 R09: 0000000000000005 [ 199.442724] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000000001fd [ 199.449976] R13: 000000000002f823 R14: 0000000000000000 R15: 0000000000000000 [ 199.461854] Mem-Info: [ 199.481729] active_anon:1379603 inactive_anon:201 isolated_anon:0 [ 199.481729] active_file:101 inactive_file:309 isolated_file:32 [ 199.481729] unevictable:0 dirty:0 writeback:8 unstable:0 [ 199.481729] slab_reclaimable:13973 slab_unreclaimable:105867 [ 199.481729] mapped:221 shmem:244 pagetables:15499 bounce:0 [ 199.481729] free:24697 free_pcp:219 free_cma:0 [ 199.601979] Node 0 active_anon:5518472kB inactive_anon:804kB active_file:656kB inactive_file:1616kB unevictable:0kB isolated(anon):0kB isolated(file):140kB mapped:1896kB dirty:36kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5353472kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 199.694862] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 199.722181] lowmem_reserve[]: 0 2816 6319 6319 [ 199.726889] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 199.772819] lowmem_reserve[]: 0 0 3503 3503 [ 199.782848] Node 0 Normal free:37376kB min:37376kB low:46720kB high:56064kB active_anon:2834284kB inactive_anon:804kB active_file:656kB inactive_file:1540kB unevictable:0kB writepending:36kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:68864kB pagetables:43988kB bounce:0kB free_pcp:1472kB local_pcp:696kB free_cma:0kB [ 199.857237] lowmem_reserve[]: 0 0 0 0 [ 199.865657] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 199.914242] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 199.974883] Node 0 Normal: 19*4kB (UME) 25*8kB (UMEH) 679*16kB (UME) 155*32kB (ME) 66*64kB (UME) 23*128kB (ME) 7*256kB (M) 3*512kB (UME) 2*1024kB (UE) 3*2048kB (M) 1*4096kB (M) = 38884kB [ 199.996119] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 200.005209] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 200.014189] 765 total pagecache pages [ 200.018199] 0 pages in swap cache [ 200.021839] Swap cache stats: add 0, delete 0, find 0/0 [ 200.027305] Free swap = 0kB [ 200.030413] Total swap = 0kB [ 200.033636] 1965979 pages RAM [ 200.036822] 0 pages HighMem/MovableOnly [ 200.041024] 343420 pages reserved [ 200.044569] 0 pages cma reserved [ 200.048028] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7740,uid=0 [ 200.061804] Out of memory: Kill process 7740 (syz-executor090) score 0 or sacrifice child [ 200.070377] Killed process 7740 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB [ 200.083077] oom_reaper: reaped process 7740 (syz-executor090), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 202.331481] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 202.342194] CPU: 1 PID: 7696 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 202.350780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 202.360135] Call Trace: [ 202.362754] dump_stack+0x1d3/0x2c6 [ 202.366392] ? dump_stack_print_info.cold.1+0x20/0x20 [ 202.371600] dump_header+0x253/0x1239 [ 202.375410] ? mark_held_locks+0x130/0x130 [ 202.379671] ? pagefault_out_of_memory+0x19d/0x19d [ 202.384606] ? mark_held_locks+0x130/0x130 [ 202.388856] ? mark_held_locks+0x130/0x130 [ 202.393092] ? __lock_acquire+0x62f/0x4c20 [ 202.397711] ? compaction_suitable+0x550/0x550 [ 202.402307] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 202.407592] ? print_usage_bug+0xc0/0xc0 [ 202.411665] ? graph_lock+0x270/0x270 [ 202.415470] ? print_usage_bug+0xc0/0xc0 [ 202.419530] ? print_usage_bug+0xc0/0xc0 [ 202.423593] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 202.429142] ? find_held_lock+0x36/0x1c0 [ 202.433224] ? mark_held_locks+0xc7/0x130 [ 202.437373] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 202.442465] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 202.447553] ? lockdep_hardirqs_on+0x421/0x5c0 [ 202.452144] ? trace_hardirqs_on+0xbd/0x310 [ 202.456454] ? kasan_check_read+0x11/0x20 [ 202.460587] ? ___ratelimit+0x36f/0x655 [ 202.464546] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 202.469982] ? trace_hardirqs_on+0x310/0x310 [ 202.474385] ? lock_downgrade+0x900/0x900 [ 202.478531] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 202.483638] ? ___ratelimit+0xaa/0x655 [ 202.487510] ? idr_get_free+0xf70/0xf70 [ 202.491466] ? kasan_check_read+0x11/0x20 [ 202.495599] ? do_raw_spin_unlock+0xa7/0x330 [ 202.500028] oom_kill_process.cold.27+0x10/0x8f9 [ 202.504769] ? graph_lock+0x270/0x270 [ 202.508551] ? _raw_spin_unlock+0x2c/0x50 [ 202.512684] ? oom_badness+0xe6/0xaa0 [ 202.516471] ? oom_evaluate_task+0x540/0x540 [ 202.520886] ? find_held_lock+0x36/0x1c0 [ 202.524951] ? out_of_memory+0xcc5/0x1480 [ 202.529085] ? lock_downgrade+0x900/0x900 [ 202.533227] ? check_preemption_disabled+0x48/0x280 [ 202.538248] ? kasan_check_read+0x11/0x20 [ 202.542425] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 202.547699] ? rcu_read_unlock_special+0x370/0x370 [ 202.552629] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 202.557634] ? oom_evaluate_task+0x302/0x540 [ 202.562027] out_of_memory+0x8ba/0x1480 [ 202.565991] ? oom_killer_disable+0x3a0/0x3a0 [ 202.570574] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 202.575490] ? __ww_mutex_check_waiters+0x160/0x160 [ 202.580499] __alloc_pages_slowpath+0x22f7/0x2d90 [ 202.585340] ? warn_alloc+0x120/0x120 [ 202.589148] ? mark_held_locks+0x130/0x130 [ 202.593376] ? lru_cache_add+0xa50/0xa50 [ 202.597425] ? warn_alloc+0x120/0x120 [ 202.601226] ? find_held_lock+0x36/0x1c0 [ 202.605288] ? print_usage_bug+0xc0/0xc0 [ 202.609350] ? print_usage_bug+0xc0/0xc0 [ 202.613415] ? put_page+0x1bb/0x280 [ 202.617042] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 202.622580] ? should_fail+0x22d/0xd01 [ 202.626469] ? graph_lock+0x270/0x270 [ 202.630279] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 202.635392] ? find_held_lock+0x36/0x1c0 [ 202.639468] ? ___might_sleep+0x1ed/0x300 [ 202.643622] ? lock_release+0xa00/0xa00 [ 202.647603] ? arch_local_save_flags+0x40/0x40 [ 202.652212] ? check_preemption_disabled+0x48/0x280 [ 202.657240] ? __might_sleep+0x95/0x190 [ 202.661221] __alloc_pages_nodemask+0xa89/0xde0 [ 202.665899] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 202.670937] ? cache_grow_begin+0x5a3/0x8c0 [ 202.675260] ? lockdep_hardirqs_on+0x421/0x5c0 [ 202.679850] ? trace_hardirqs_on+0xbd/0x310 [ 202.684176] ? fallback_alloc+0x203/0x2e0 [ 202.688327] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 202.693779] ? ____cache_alloc_node+0x16b/0x1e0 [ 202.698452] ? lock_downgrade+0x900/0x900 [ 202.702615] cache_grow_begin+0x91/0x8c0 [ 202.706680] ? do_raw_spin_unlock+0xa7/0x330 [ 202.711104] fallback_alloc+0x203/0x2e0 [ 202.715090] ____cache_alloc_node+0x1c7/0x1e0 [ 202.719597] kmem_cache_alloc+0x1f6/0x730 [ 202.723752] ? cap_capable+0x1f9/0x260 [ 202.727653] getname_flags+0xd0/0x590 [ 202.731462] user_path_mountpoint_at+0x27/0x40 [ 202.736047] ksys_umount+0x1c5/0x13b0 [ 202.739855] ? __detach_mounts+0x430/0x430 [ 202.744087] ? lock_downgrade+0x900/0x900 [ 202.748234] ? kasan_check_read+0x11/0x20 [ 202.752370] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 202.757633] ? rcu_read_unlock_special+0x370/0x370 [ 202.762547] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 202.768069] ? check_preemption_disabled+0x48/0x280 [ 202.773075] ? kasan_check_write+0x14/0x20 [ 202.777296] ? up_read+0x225/0x2c0 [ 202.780819] ? up_read_non_owner+0x100/0x100 [ 202.785213] ? do_syscall_64+0x9a/0x820 [ 202.789176] ? do_syscall_64+0x9a/0x820 [ 202.793160] ? lockdep_hardirqs_on+0x421/0x5c0 [ 202.797728] ? trace_hardirqs_on+0xbd/0x310 [ 202.802046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 202.807570] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 202.812918] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 202.818376] __x64_sys_umount+0x54/0x80 [ 202.822346] do_syscall_64+0x1b9/0x820 [ 202.826242] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 202.831611] ? syscall_return_slowpath+0x5e0/0x5e0 [ 202.836543] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 202.841374] ? trace_hardirqs_on_caller+0x310/0x310 [ 202.846373] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 202.851374] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 202.856895] ? prepare_exit_to_usermode+0x291/0x3b0 [ 202.861895] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 202.866726] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 202.871917] RIP: 0033:0x449407 [ 202.875097] Code: 44 00 00 b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 5d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 3d dd fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 202.893980] RSP: 002b:00007ffeec191568 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 202.901670] RAX: ffffffffffffffda RBX: 0000000000004273 RCX: 0000000000449407 [ 202.908928] RDX: 0000000040000001 RSI: 0000000000000002 RDI: 00007ffeec1926b0 [ 202.916197] RBP: 0000000000004273 R08: 0000000000001e10 R09: 000000000072c880 [ 202.923459] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000209 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 202.930822] R13: 00007ffeec1926b0 R14: 0000000000000000 R15: 0000000000000000 [ 202.939512] Mem-Info: [ 202.954993] active_anon:1379397 inactive_anon:201 isolated_anon:0 [ 202.954993] active_file:48 inactive_file:250 isolated_file:0 [ 202.954993] unevictable:0 dirty:10 writeback:0 unstable:0 [ 202.954993] slab_reclaimable:14007 slab_unreclaimable:105679 [ 202.954993] mapped:108 shmem:244 pagetables:15609 bounce:0 [ 202.954993] free:24729 free_pcp:340 free_cma:0 [ 203.105889] Node 0 active_anon:5517588kB inactive_anon:804kB active_file:1092kB inactive_file:1252kB unevictable:0kB isolated(anon):0kB isolated(file):104kB mapped:1932kB dirty:40kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5351424kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 203.170826] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 203.230568] lowmem_reserve[]: 0 2816 6319 6319 [ 203.235269] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 203.266034] lowmem_reserve[]: 0 0 3503 3503 [ 203.270406] Node 0 Normal free:38520kB min:37376kB low:46720kB high:56064kB active_anon:2833400kB inactive_anon:804kB active_file:696kB inactive_file:1344kB unevictable:0kB writepending:40kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:69440kB pagetables:44404kB bounce:0kB free_pcp:172kB local_pcp:0kB free_cma:0kB [ 203.311142] lowmem_reserve[]: 0 0 0 0 [ 203.314983] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 203.344254] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 203.386486] Node 0 Normal: 14*4kB (UME) 41*8kB (UMEH) 574*16kB (UME) 159*32kB (UME) 65*64kB (ME) 23*128kB (UM) 8*256kB (UM) 3*512kB (UME) 1*1024kB (E) 2*2048kB (M) 2*4096kB (M) = 38656kB [ 203.421323] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 203.440314] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 203.458075] 773 total pagecache pages [ 203.462922] 0 pages in swap cache [ 203.466497] Swap cache stats: add 0, delete 0, find 0/0 [ 203.472098] Free swap = 0kB [ 203.475216] Total swap = 0kB [ 203.478429] 1965979 pages RAM [ 203.481776] 0 pages HighMem/MovableOnly [ 203.485847] 343420 pages reserved [ 203.489393] 0 pages cma reserved [ 203.493190] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7749,uid=0 [ 203.507010] Out of memory: Kill process 7749 (syz-executor090) score 0 or sacrifice child [ 203.515614] Killed process 7749 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 205.674462] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 205.685322] CPU: 0 PID: 17032 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 205.693996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 205.703354] Call Trace: [ 205.705955] dump_stack+0x1d3/0x2c6 [ 205.709594] ? dump_stack_print_info.cold.1+0x20/0x20 [ 205.714816] dump_header+0x253/0x1239 [ 205.718628] ? mark_held_locks+0x130/0x130 [ 205.722884] ? pagefault_out_of_memory+0x19d/0x19d [ 205.727819] ? mark_held_locks+0x130/0x130 [ 205.732067] ? mark_held_locks+0x130/0x130 [ 205.736307] ? __lock_acquire+0x62f/0x4c20 [ 205.740546] ? lockdep_hardirqs_on+0x421/0x5c0 [ 205.745131] ? trace_hardirqs_on+0xbd/0x310 [ 205.749460] ? kasan_check_read+0x11/0x20 [ 205.753617] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 205.759078] ? graph_lock+0x270/0x270 [ 205.762885] ? print_usage_bug+0xc0/0xc0 [ 205.766962] ? print_usage_bug+0xc0/0xc0 [ 205.771031] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 205.776583] ? find_held_lock+0x36/0x1c0 [ 205.780659] ? mark_held_locks+0xc7/0x130 [ 205.784816] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 205.789936] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 205.795038] ? lockdep_hardirqs_on+0x421/0x5c0 [ 205.799612] ? trace_hardirqs_on+0xbd/0x310 [ 205.803931] ? kasan_check_read+0x11/0x20 [ 205.808074] ? ___ratelimit+0x36f/0x655 [ 205.812037] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 205.817489] ? trace_hardirqs_on+0x310/0x310 [ 205.821894] ? lock_downgrade+0x900/0x900 [ 205.826043] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 205.831128] ? ___ratelimit+0xaa/0x655 [ 205.835006] ? idr_get_free+0xf70/0xf70 [ 205.838977] ? kasan_check_read+0x11/0x20 [ 205.843127] oom_kill_process.cold.27+0x10/0x8f9 [ 205.847882] ? graph_lock+0x270/0x270 [ 205.851679] ? __rcu_read_unlock+0x205/0x210 [ 205.856085] ? trace_hardirqs_on+0x310/0x310 [ 205.860495] ? oom_evaluate_task+0x540/0x540 [ 205.864895] ? find_held_lock+0x36/0x1c0 [ 205.868945] ? out_of_memory+0xcc5/0x1480 [ 205.873075] ? lock_downgrade+0x900/0x900 [ 205.877215] ? check_preemption_disabled+0x48/0x280 [ 205.882230] ? __rcu_read_unlock+0x205/0x210 [ 205.886624] ? rcu_read_unlock_special+0x370/0x370 [ 205.891544] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 205.896548] ? oom_evaluate_task+0x302/0x540 [ 205.900944] out_of_memory+0x8ba/0x1480 [ 205.904944] ? oom_killer_disable+0x3a0/0x3a0 [ 205.909435] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 205.914358] ? __ww_mutex_check_waiters+0x160/0x160 [ 205.919382] __alloc_pages_slowpath+0x22f7/0x2d90 [ 205.924228] ? warn_alloc+0x120/0x120 [ 205.928015] ? __alloc_pages_slowpath+0x4cc/0x2d90 [ 205.933022] ? warn_alloc+0x120/0x120 [ 205.936914] ? preempt_count_add+0xbc/0x1b0 [ 205.941222] ? get_page_from_freelist+0x18c1/0x4c00 [ 205.946225] ? print_usage_bug+0xc0/0xc0 [ 205.950309] ? print_usage_bug+0xc0/0xc0 [ 205.954367] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 205.959907] ? should_fail+0x22d/0xd01 [ 205.963789] ? graph_lock+0x270/0x270 [ 205.967587] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 205.972681] ? __lock_acquire+0x62f/0x4c20 [ 205.976911] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 205.982440] ? find_held_lock+0x36/0x1c0 [ 205.986509] ? ___might_sleep+0x1ed/0x300 [ 205.990645] ? lock_release+0xa00/0xa00 [ 205.994614] ? arch_local_save_flags+0x40/0x40 [ 205.999182] ? check_preemption_disabled+0x48/0x280 [ 206.004206] ? __might_sleep+0x95/0x190 [ 206.008172] __alloc_pages_nodemask+0xa89/0xde0 [ 206.012840] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 206.017864] ? cache_grow_begin+0x5a3/0x8c0 [ 206.022183] ? lockdep_hardirqs_on+0x421/0x5c0 [ 206.026755] ? trace_hardirqs_on+0xbd/0x310 [ 206.031069] ? fallback_alloc+0x203/0x2e0 [ 206.035212] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 206.040646] ? ____cache_alloc_node+0x16b/0x1e0 [ 206.045319] ? lock_downgrade+0x900/0x900 [ 206.049461] cache_grow_begin+0x91/0x8c0 [ 206.053516] ? do_raw_spin_unlock+0xa7/0x330 [ 206.057932] fallback_alloc+0x203/0x2e0 [ 206.061903] ____cache_alloc_node+0x1c7/0x1e0 [ 206.066388] kmem_cache_alloc_node+0xe3/0x730 [ 206.070882] copy_process+0x2027/0x8780 [ 206.074852] ? print_usage_bug+0xc0/0xc0 [ 206.078902] ? print_usage_bug+0xc0/0xc0 [ 206.082948] ? find_held_lock+0x36/0x1c0 [ 206.087023] ? __cleanup_sighand+0x70/0x70 [ 206.091245] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.096768] ? wakeup_kswapd+0x13d/0x930 [ 206.100815] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 206.106023] ? isolate_lru_page+0x22e0/0x22e0 [ 206.110508] ? print_usage_bug+0xc0/0xc0 [ 206.114577] ? mark_held_locks+0x130/0x130 [ 206.118804] ? __lock_acquire+0x62f/0x4c20 [ 206.123152] ? wake_all_kswapds+0x150/0x300 [ 206.127478] ? mem_cgroup_update_lru_size+0xd0/0xd0 [ 206.132486] ? mark_held_locks+0x130/0x130 [ 206.136712] ? print_usage_bug+0xc0/0xc0 [ 206.140757] ? print_usage_bug+0xc0/0xc0 [ 206.144810] ? warn_alloc+0x120/0x120 [ 206.148592] ? mark_held_locks+0x130/0x130 [ 206.152841] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.158363] ? check_preemption_disabled+0x48/0x280 [ 206.163485] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.169023] ? __lru_cache_add+0x2ff/0x4e0 [ 206.173257] ? __pagevec_lru_add+0x30/0x30 [ 206.177494] ? mark_held_locks+0x130/0x130 [ 206.181728] ? __lock_acquire+0x62f/0x4c20 [ 206.185967] ? lru_cache_add+0x417/0xa50 [ 206.190018] ? lru_cache_add_file+0x20/0x20 [ 206.194343] ? print_usage_bug+0xc0/0xc0 [ 206.198414] ? rcu_read_unlock_special+0x370/0x370 [ 206.203340] ? check_preemption_disabled+0x48/0x280 [ 206.208358] ? __this_cpu_preempt_check+0x1c/0x20 [ 206.213207] ? mem_cgroup_event_ratelimit.isra.53+0x51/0x110 [ 206.218995] ? mark_held_locks+0xc7/0x130 [ 206.223131] ? mem_cgroup_commit_charge+0x275/0x9d0 [ 206.228132] ? mem_cgroup_commit_charge+0x275/0x9d0 [ 206.233151] ? graph_lock+0x270/0x270 [ 206.236941] ? lru_cache_add+0xa50/0xa50 [ 206.240986] ? lock_downgrade+0x900/0x900 [ 206.245119] ? check_preemption_disabled+0x48/0x280 [ 206.250126] ? find_held_lock+0x36/0x1c0 [ 206.254196] ? __handle_mm_fault+0x2c14/0x55f0 [ 206.258763] ? lock_downgrade+0x900/0x900 [ 206.262910] ? kasan_check_read+0x11/0x20 [ 206.267081] ? do_raw_spin_unlock+0xa7/0x330 [ 206.271479] ? do_raw_spin_trylock+0x270/0x270 [ 206.276048] ? migration_entry_to_page+0x550/0x550 [ 206.280959] ? pte_offset_kernel+0xf0/0xf0 [ 206.285204] ? _raw_spin_unlock+0x2c/0x50 [ 206.289338] ? __handle_mm_fault+0x9b4/0x55f0 [ 206.293821] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 206.298647] ? graph_lock+0x270/0x270 [ 206.302430] ? print_usage_bug+0xc0/0xc0 [ 206.306484] ? graph_lock+0x270/0x270 [ 206.310268] ? graph_lock+0x270/0x270 [ 206.314061] ? find_held_lock+0x36/0x1c0 [ 206.318108] _do_fork+0x1cb/0x11d0 [ 206.321635] ? fork_idle+0x1d0/0x1d0 [ 206.325339] ? kasan_check_read+0x11/0x20 [ 206.329484] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 206.334755] ? rcu_read_unlock_special+0x370/0x370 [ 206.339674] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 206.345216] ? check_preemption_disabled+0x48/0x280 [ 206.350226] ? kasan_check_write+0x14/0x20 [ 206.354450] ? up_read+0x225/0x2c0 [ 206.357979] ? up_read_non_owner+0x100/0x100 [ 206.362382] ? do_syscall_64+0x9a/0x820 [ 206.366341] ? do_syscall_64+0x9a/0x820 [ 206.370316] ? lockdep_hardirqs_on+0x421/0x5c0 [ 206.374888] ? trace_hardirqs_on+0xbd/0x310 [ 206.379215] ? mprotect_fixup+0xc60/0xc60 [ 206.383353] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 206.388714] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 206.394154] __x64_sys_clone+0xbf/0x150 [ 206.398135] do_syscall_64+0x1b9/0x820 [ 206.402010] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 206.407375] ? syscall_return_slowpath+0x5e0/0x5e0 [ 206.412294] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 206.417123] ? trace_hardirqs_on_caller+0x310/0x310 [ 206.422125] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 206.427124] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.432648] ? prepare_exit_to_usermode+0x291/0x3b0 [ 206.437650] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 206.442495] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 206.447677] RIP: 0033:0x449389 [ 206.450856] Code: ff 48 85 f6 0f 84 e7 dd fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c be dd fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 [ 206.469741] RSP: 002b:00007ffeec192528 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 [ 206.477435] RAX: ffffffffffffffda RBX: 00007fc7f3576700 RCX: 0000000000449389 [ 206.484688] RDX: 00007fc7f35769d0 RSI: 00007fc7f3575e70 RDI: 00000000003d0f00 [ 206.491940] RBP: 00007ffeec192670 R08: 00007fc7f3576700 R09: 00007fc7f3576700 [ 206.499192] R10: 00007fc7f35769d0 R11: 0000000000000202 R12: 0000000000000000 [ 206.506462] R13: 00007ffeec1925df R14: 00007fc7f35769c0 R15: 00000000006dcd2c [ 206.517780] Mem-Info: [ 206.520378] active_anon:1378969 inactive_anon:201 isolated_anon:0 [ 206.520378] active_file:15 inactive_file:42 isolated_file:32 [ 206.520378] unevictable:0 dirty:0 writeback:0 unstable:0 [ 206.520378] slab_reclaimable:14028 slab_unreclaimable:105926 [ 206.520378] mapped:12 shmem:244 pagetables:15637 bounce:0 [ 206.520378] free:25221 free_pcp:83 free_cma:0 [ 206.570451] Node 0 active_anon:5515876kB inactive_anon:804kB active_file:160kB inactive_file:736kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:648kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5349376kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 206.620843] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 206.655502] lowmem_reserve[]: 0 2816 6319 6319 [ 206.660128] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 206.688723] lowmem_reserve[]: 0 0 3503 3503 [ 206.693217] Node 0 Normal free:38076kB min:37376kB low:46720kB high:56064kB active_anon:2831716kB inactive_anon:804kB active_file:272kB inactive_file:1552kB unevictable:0kB writepending:28kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:69760kB pagetables:44524kB bounce:0kB free_pcp:1412kB local_pcp:680kB free_cma:0kB [ 206.730816] lowmem_reserve[]: 0 0 0 0 [ 206.734659] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 206.761050] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 206.800813] Node 0 Normal: 0*4kB 6*8kB (EH) 457*16kB (UME) 159*32kB (UME) 66*64kB (UME) 24*128kB (UME) 7*256kB (M) 2*512kB (UM) 1*1024kB (E) 1*2048kB (M) 3*4096kB (M) = 37920kB [ 206.830823] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 206.839704] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 206.848479] 781 total pagecache pages [ 206.852437] 0 pages in swap cache [ 206.855896] Swap cache stats: add 0, delete 0, find 0/0 [ 206.861412] Free swap = 0kB [ 206.864429] Total swap = 0kB [ 206.867440] 1965979 pages RAM [ 206.870541] 0 pages HighMem/MovableOnly [ 206.874692] 343420 pages reserved [ 206.878149] 0 pages cma reserved [ 206.881885] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7750,uid=0 [ 206.905701] Out of memory: Kill process 7750 (syz-executor090) score 0 or sacrifice child [ 206.914277] Killed process 7750 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 210.441135] syz-executor090 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 210.451810] CPU: 1 PID: 17087 Comm: syz-executor090 Not tainted 4.20.0-rc7-next-20181224 #188 [ 210.460476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 210.469832] Call Trace: [ 210.472430] dump_stack+0x1d3/0x2c6 [ 210.476063] ? dump_stack_print_info.cold.1+0x20/0x20 [ 210.481261] dump_header+0x253/0x1239 [ 210.485061] ? mark_held_locks+0x130/0x130 [ 210.489396] ? pagefault_out_of_memory+0x19d/0x19d [ 210.494332] ? mark_held_locks+0x130/0x130 [ 210.498692] ? mark_held_locks+0x130/0x130 [ 210.502929] ? __lock_acquire+0x62f/0x4c20 [ 210.507162] ? __switch_to_asm+0x34/0x70 [ 210.511310] ? __switch_to_asm+0x40/0x70 [ 210.515368] ? __switch_to_asm+0x34/0x70 [ 210.519428] ? __switch_to_asm+0x40/0x70 [ 210.523490] ? __switch_to_asm+0x34/0x70 [ 210.527564] ? __switch_to_asm+0x40/0x70 [ 210.531623] ? __switch_to_asm+0x34/0x70 [ 210.535688] ? print_usage_bug+0xc0/0xc0 [ 210.539756] ? graph_lock+0x270/0x270 [ 210.543560] ? print_usage_bug+0xc0/0xc0 [ 210.547624] ? print_usage_bug+0xc0/0xc0 [ 210.551679] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 210.557201] ? find_held_lock+0x36/0x1c0 [ 210.561251] ? mark_held_locks+0xc7/0x130 [ 210.565426] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 210.570515] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 210.575601] ? lockdep_hardirqs_on+0x421/0x5c0 [ 210.580166] ? trace_hardirqs_on+0xbd/0x310 [ 210.584468] ? kasan_check_read+0x11/0x20 [ 210.588599] ? ___ratelimit+0x36f/0x655 [ 210.592555] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 210.597993] ? trace_hardirqs_on+0x310/0x310 [ 210.602397] ? lock_downgrade+0x900/0x900 [ 210.606529] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 210.611626] ? ___ratelimit+0xaa/0x655 [ 210.615507] ? idr_get_free+0xf70/0xf70 [ 210.619465] ? kasan_check_read+0x11/0x20 [ 210.623613] oom_kill_process.cold.27+0x10/0x8f9 [ 210.628471] ? graph_lock+0x270/0x270 [ 210.632260] ? __rcu_read_unlock+0x205/0x210 [ 210.636654] ? trace_hardirqs_on+0x310/0x310 [ 210.641047] ? oom_evaluate_task+0x540/0x540 [ 210.645440] ? find_held_lock+0x36/0x1c0 [ 210.649490] ? out_of_memory+0xcc5/0x1480 [ 210.653623] ? lock_downgrade+0x900/0x900 [ 210.657760] ? check_preemption_disabled+0x48/0x280 [ 210.662764] ? __rcu_read_unlock+0x205/0x210 [ 210.667159] ? rcu_read_unlock_special+0x370/0x370 [ 210.672078] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 210.677093] ? oom_evaluate_task+0x302/0x540 [ 210.681487] out_of_memory+0x8ba/0x1480 [ 210.685450] ? oom_killer_disable+0x3a0/0x3a0 [ 210.689947] ? __alloc_pages_slowpath+0xf45/0x2d90 [ 210.694860] ? __ww_mutex_check_waiters+0x160/0x160 [ 210.699917] __alloc_pages_slowpath+0x22f7/0x2d90 [ 210.704758] ? warn_alloc+0x120/0x120 [ 210.708540] ? mark_held_locks+0x130/0x130 [ 210.712764] ? warn_alloc+0x120/0x120 [ 210.716549] ? print_usage_bug+0xc0/0xc0 [ 210.720592] ? print_usage_bug+0xc0/0xc0 [ 210.724642] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 210.730169] ? should_fail+0x22d/0xd01 [ 210.734051] ? graph_lock+0x270/0x270 [ 210.737838] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 210.742926] ? find_held_lock+0x36/0x1c0 [ 210.747028] ? _raw_spin_unlock+0x2c/0x50 [ 210.751159] ? ___might_sleep+0x1ed/0x300 [ 210.755284] ? lock_release+0xa00/0xa00 [ 210.759239] ? arch_local_save_flags+0x40/0x40 [ 210.763807] ? check_preemption_disabled+0x48/0x280 [ 210.768814] ? __might_sleep+0x95/0x190 [ 210.772794] __alloc_pages_nodemask+0xa89/0xde0 [ 210.777448] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 210.782456] ? cache_grow_begin+0x5a3/0x8c0 [ 210.786757] ? lockdep_hardirqs_on+0x421/0x5c0 [ 210.791321] ? trace_hardirqs_on+0xbd/0x310 [ 210.795637] ? fallback_alloc+0x203/0x2e0 [ 210.799766] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 210.805203] ? ____cache_alloc_node+0x16b/0x1e0 [ 210.809862] ? lock_downgrade+0x900/0x900 [ 210.814006] cache_grow_begin+0x91/0x8c0 [ 210.818056] ? do_raw_spin_unlock+0xa7/0x330 [ 210.822449] fallback_alloc+0x203/0x2e0 [ 210.826409] ____cache_alloc_node+0x1c7/0x1e0 [ 210.830894] kmem_cache_alloc+0x1f6/0x730 [ 210.835037] ? check_preemption_disabled+0x48/0x280 [ 210.840050] getname_flags+0xd0/0x590 [ 210.843837] user_path_at_empty+0x2d/0x50 [ 210.847986] ksys_chdir+0xc0/0x230 [ 210.851510] ? __ia32_sys_access+0x80/0x80 [ 210.855728] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 210.861166] __x64_sys_chdir+0x31/0x40 [ 210.865040] do_syscall_64+0x1b9/0x820 [ 210.868911] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 210.874274] ? syscall_return_slowpath+0x5e0/0x5e0 [ 210.879188] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 210.884040] ? trace_hardirqs_on_caller+0x310/0x310 [ 210.889038] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 210.894037] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 210.899553] ? prepare_exit_to_usermode+0x291/0x3b0 [ 210.904557] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 210.909390] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 210.914559] RIP: 0033:0x4460e7 [ 210.917735] Code: 00 00 8b 44 24 08 e9 67 ff ff ff 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d8 0f 1f 44 00 00 b8 50 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 210.936616] RSP: 002b:00007ffeec192658 EFLAGS: 00000246 ORIG_RAX: 0000000000000050 [ 210.944302] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004460e7 [ 210.951565] RDX: 0000000000000001 RSI: 00000000006db0a0 RDI: 00007ffeec1926b0 [ 210.958838] RBP: 0000000000000000 R08: 0000000000001e10 R09: 000000000072c880 [ 210.966178] R10: 000000000072cb50 R11: 0000000000000246 R12: 0000000000000211 [ 210.973428] R13: 00000000000329c4 R14: 0000000000000000 R15: 0000000000000000 [ 210.981403] Mem-Info: [ 210.983940] active_anon:1378741 inactive_anon:201 isolated_anon:0 [ 210.983940] active_file:1 inactive_file:34 isolated_file:21 [ 210.983940] unevictable:0 dirty:0 writeback:0 unstable:0 [ 210.983940] slab_reclaimable:14075 slab_unreclaimable:105907 [ 210.983940] mapped:10 shmem:244 pagetables:15738 bounce:0 [ 210.983940] free:24745 free_pcp:447 free_cma:0 [ 211.017121] Node 0 active_anon:5514964kB inactive_anon:804kB active_file:120kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):60kB mapped:96kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 5347328kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 211.044693] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 211.071016] lowmem_reserve[]: 0 2816 6319 6319 [ 211.075713] Node 0 DMA32 free:43984kB min:30040kB low:37548kB high:45056kB active_anon:2684188kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2886768kB mlocked:0kB kernel_stack:34624kB pagetables:18032kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 211.104640] lowmem_reserve[]: 0 0 3503 3503 [ 211.108974] Node 0 Normal free:39088kB min:37376kB low:46720kB high:56064kB active_anon:2830776kB inactive_anon:804kB active_file:140kB inactive_file:200kB unevictable:0kB writepending:0kB present:4718592kB managed:3587560kB mlocked:0kB kernel_stack:70240kB pagetables:44920kB bounce:0kB free_pcp:1528kB local_pcp:1012kB free_cma:0kB [ 211.138731] lowmem_reserve[]: 0 0 0 0 [ 211.143552] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 211.157285] Node 0 DMA32: 782*4kB (UME) 29*8kB (ME) 1*16kB (M) 7*32kB (UME) 1*64kB (E) 1*128kB (U) 1*256kB (U) 2*512kB (UM) 2*1024kB (UE) 2*2048kB (ME) 8*4096kB (M) = 43984kB [ 211.173199] Node 0 Normal: 2*4kB (ME) 30*8kB (UMEH) 458*16kB (UME) 144*32kB (UME) 66*64kB (UME) 23*128kB (UM) 9*256kB (UME) 1*512kB (M) 1*1024kB (E) 2*2048kB (M) 3*4096kB (M) = 39576kB [ 211.190009] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 211.199007] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 211.207724] 618 total pagecache pages [ 211.211681] 0 pages in swap cache [ 211.215225] Swap cache stats: add 0, delete 0, find 0/0 [ 211.220678] Free swap = 0kB [ 211.230864] Total swap = 0kB [ 211.237368] 1965979 pages RAM executing program [ 211.242004] 0 pages HighMem/MovableOnly [ 211.246082] 343420 pages reserved [ 211.249628] 0 pages cma reserved [ 211.253109] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=syz-executor090,pid=7751,uid=0 [ 211.266635] Out of memory: Kill process 7751 (syz-executor090) score 0 or sacrifice child [ 211.275907] Killed process 7751 (syz-executor090) total-vm:17716kB, anon-rss:2104kB, file-rss:12kB, shmem-rss:0kB executing program executing program executing program executing program executing program executing program executing program executing program [ 212.201897] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 212.210307] CPU: 1 PID: 3073 Comm: kworker/u4:4 Not tainted 4.20.0-rc7-next-20181224 #188 [ 212.218615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 212.227976] Workqueue: writeback wb_workfn (flush-8:0) [ 212.233234] Call Trace: [ 212.235810] dump_stack+0x1d3/0x2c6 [ 212.239425] ? dump_stack_print_info.cold.1+0x20/0x20 [ 212.244607] panic+0x2ad/0x632 [ 212.247783] ? add_taint.cold.5+0x16/0x16 [ 212.251918] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 212.257442] ? check_preemption_disabled+0x48/0x280 [ 212.262456] ? check_preemption_disabled+0x3a/0x280 [ 212.267459] __schedule+0x1ecf/0x1ed0 [ 212.271247] ? find_held_lock+0x36/0x1c0 [ 212.275294] ? __sched_text_start+0x8/0x8 [ 212.279421] ? graph_lock+0x270/0x270 [ 212.283203] ? print_usage_bug+0xc0/0xc0 [ 212.287253] ? lock_downgrade+0x900/0x900 [ 212.291400] ? find_held_lock+0x36/0x1c0 [ 212.295448] ? mark_held_locks+0xc7/0x130 [ 212.299587] schedule+0xef/0x370 [ 212.302939] ? __schedule+0x1ed0/0x1ed0 [ 212.306910] ? rwsem_down_read_failed+0x342/0x710 [ 212.311757] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 212.317193] ? rcu_read_lock_sched_held+0x108/0x120 [ 212.322192] ? rcu_note_context_switch+0x12af/0x2150 [ 212.327283] rwsem_down_read_failed+0x371/0x710 [ 212.331937] ? rt_mutex_futex_unlock+0x120/0x120 [ 212.336678] ? mark_held_locks+0xc7/0x130 [ 212.340830] ? __lock_is_held+0xb5/0x140 [ 212.344874] ? lock_acquire+0x1ed/0x520 [ 212.348835] ? rmap_walk_file+0xa7e/0x1190 [ 212.353055] ? lock_release+0xa00/0xa00 [ 212.357012] ? arch_local_save_flags+0x40/0x40 [ 212.361598] call_rwsem_down_read_failed+0x18/0x30 [ 212.366522] down_read+0x9b/0x120 [ 212.369963] ? rmap_walk_file+0xa7e/0x1190 [ 212.374177] ? __down_interruptible+0x700/0x700 [ 212.378835] ? vma_interval_tree_iter_next+0xf7/0x240 [ 212.384008] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 212.389529] rmap_walk_file+0xa7e/0x1190 [ 212.393578] ? __lock_acquire+0x62f/0x4c20 [ 212.397805] ? page_mkclean_one+0x8f0/0x8f0 [ 212.402131] ? mark_held_locks+0x130/0x130 [ 212.406350] ? find_held_lock+0x36/0x1c0 [ 212.410395] ? kasan_check_read+0x11/0x20 [ 212.414534] ? total_mapcount+0x2c8/0x940 [ 212.418666] ? vma_adjust_trans_huge+0x310/0x310 [ 212.423405] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 212.428938] ? page_mapped+0x366/0x810 [ 212.432809] ? page_mapping+0xa50/0xa50 [ 212.436792] ? ___preempt_schedule+0x16/0x18 [ 212.441193] ? graph_lock+0x270/0x270 [ 212.444981] rmap_walk+0x22c/0x350 [ 212.448504] ? page_get_anon_vma+0x6d0/0x6d0 [ 212.452914] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 212.458435] ? page_rmapping+0xd9/0x160 [ 212.462391] ? vm_mmap+0xc0/0xc0 [ 212.465746] page_referenced+0x7d1/0xaa0 [ 212.469794] ? rmap_walk+0x350/0x350 [ 212.473497] ? kasan_check_read+0x11/0x20 [ 212.477651] ? rcu_read_unlock_special+0x370/0x370 [ 212.482580] ? page_mapcount_is_zero+0x30/0x30 [ 212.487146] ? __anon_vma_prepare+0x6c0/0x6c0 [ 212.491636] ? page_evictable+0x305/0x540 [ 212.495773] ? kswapd_stop+0x100/0x100 [ 212.499647] ? ___might_sleep+0x1ed/0x300 [ 212.503791] ? check_preemption_disabled+0x48/0x280 [ 212.508804] ? arch_local_save_flags+0x40/0x40 [ 212.513386] ? count_memcg_events+0x1ac/0x2a0 [ 212.517869] shrink_page_list+0x311a/0xc350 [ 212.522189] ? page_evictable+0x540/0x540 [ 212.526326] ? rb_next+0x140/0x140 [ 212.529845] ? rb_next+0x140/0x140 [ 212.533371] ? check_usage+0x1aa/0x790 [ 212.537246] ? rb_next+0x140/0x140 [ 212.540776] ? rb_next+0x140/0x140 [ 212.544316] ? graph_lock+0x270/0x270 [ 212.548104] ? __update_load_avg_se+0x5eb/0xae0 [ 212.552776] ? __update_load_avg_blocked_se+0x690/0x690 [ 212.558134] ? __update_load_avg_se+0xae0/0xae0 [ 212.562786] ? graph_lock+0x270/0x270 [ 212.566601] ? update_load_avg+0x387/0x2470 [ 212.570906] ? rb_erase_cached+0xc78/0x3720 [ 212.575216] ? rb_erase_cached+0xc78/0x3720 [ 212.579520] ? rb_erase_cached+0xc78/0x3720 [ 212.583835] ? rb_erase_cached+0xc78/0x3720 [ 212.588136] ? rb_next+0x140/0x140 [ 212.591659] ? rb_erase_cached+0xc78/0x3720 [ 212.595980] ? graph_lock+0x270/0x270 [ 212.599766] ? rb_next+0x140/0x140 [ 212.603396] ? rb_erase_cached+0xc78/0x3720 [ 212.607700] ? rb_next+0x140/0x140 [ 212.611227] ? __update_load_avg_blocked_se+0x690/0x690 [ 212.616589] ? __update_load_avg_se+0xae0/0xae0 [ 212.621238] ? graph_lock+0x270/0x270 [ 212.625026] ? update_load_avg+0x387/0x2470 [ 212.629335] ? attach_entity_load_avg+0x860/0x860 [ 212.634180] ? update_load_avg+0x387/0x2470 [ 212.638497] ? attach_entity_load_avg+0x860/0x860 [ 212.643354] ? attach_entity_load_avg+0x860/0x860 [ 212.648179] ? __lock_acquire+0x62f/0x4c20 [ 212.652396] ? graph_lock+0x270/0x270 [ 212.656183] ? graph_lock+0x270/0x270 [ 212.659975] ? rb_erase+0x3710/0x3710 [ 212.663757] ? graph_lock+0x270/0x270 [ 212.667536] ? graph_lock+0x270/0x270 [ 212.671319] ? __update_load_avg_blocked_se+0x690/0x690 [ 212.676665] ? graph_lock+0x270/0x270 [ 212.680458] ? __update_load_avg_blocked_se+0x690/0x690 [ 212.685821] ? __update_load_avg_se+0xae0/0xae0 [ 212.690476] ? graph_lock+0x270/0x270 [ 212.694269] ? __update_load_avg_blocked_se+0x690/0x690 [ 212.699615] ? __update_load_avg_se+0xae0/0xae0 [ 212.704263] ? graph_lock+0x270/0x270 [ 212.708050] ? print_usage_bug+0xc0/0xc0 [ 212.712101] ? graph_lock+0x270/0x270 [ 212.715898] ? attach_entity_load_avg+0x860/0x860 [ 212.720745] ? graph_lock+0x270/0x270 [ 212.724533] ? __lock_is_held+0xb5/0x140 [ 212.728582] ? __lock_acquire+0x62f/0x4c20 [ 212.732809] ? __lock_is_held+0xb5/0x140 [ 212.736863] ? __account_cfs_rq_runtime+0x790/0x790 [ 212.741874] ? mark_held_locks+0x130/0x130 [ 212.746089] ? set_next_entity+0x2f0/0xaf0 [ 212.750306] ? __lock_acquire+0x62f/0x4c20 [ 212.754534] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 212.760073] ? update_load_avg+0x2470/0x2470 [ 212.764664] ? __enqueue_entity+0x10d/0x1f0 [ 212.769015] ? pick_next_task_fair+0xa0e/0x1ba0 [ 212.773666] ? rcu_read_lock_sched_held+0x108/0x120 [ 212.778668] ? rcu_note_context_switch+0x12af/0x2150 [ 212.783756] ? print_usage_bug+0xc0/0xc0 [ 212.787906] ? graph_lock+0x270/0x270 [ 212.791698] ? print_usage_bug+0xc0/0xc0 [ 212.795742] ? print_usage_bug+0xc0/0xc0 [ 212.799781] ? graph_lock+0x270/0x270 [ 212.803578] ? find_held_lock+0x36/0x1c0 [ 212.807636] ? __lock_acquire+0x62f/0x4c20 [ 212.811881] ? _raw_spin_unlock_irq+0x27/0x80 [ 212.816362] ? _raw_spin_unlock_irq+0x27/0x80 [ 212.820844] ? lockdep_hardirqs_on+0x421/0x5c0 [ 212.825419] ? trace_hardirqs_on+0xbd/0x310 [ 212.829736] ? kasan_check_read+0x11/0x20 [ 212.833878] ? mark_held_locks+0x130/0x130 [ 212.838094] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 212.843618] ? _raw_spin_unlock_irq+0x60/0x80 [ 212.848209] ? finish_task_switch+0x1b4/0x910 [ 212.852720] ? __switch_to_asm+0x34/0x70 [ 212.856770] ? __bpf_trace_sched_wake_idle_without_ipi+0x10/0x10 [ 212.862932] ? __switch_to_asm+0x34/0x70 [ 212.866985] ? __switch_to_asm+0x34/0x70 [ 212.871029] ? __switch_to_asm+0x40/0x70 [ 212.875090] ? __switch_to_asm+0x34/0x70 [ 212.879141] ? __switch_to_asm+0x40/0x70 [ 212.883287] ? __switch_to_asm+0x34/0x70 [ 212.887332] ? __switch_to_asm+0x40/0x70 [ 212.891377] ? __switch_to_asm+0x34/0x70 [ 212.895419] ? __switch_to_asm+0x40/0x70 [ 212.899465] ? print_usage_bug+0xc0/0xc0 [ 212.903511] ? __switch_to_asm+0x40/0x70 [ 212.907554] ? __switch_to_asm+0x34/0x70 [ 212.911603] ? __switch_to_asm+0x40/0x70 [ 212.915653] ? __schedule+0x9e6/0x1ed0 [ 212.919527] ? graph_lock+0x270/0x270 [ 212.923310] ? mark_held_locks+0xc7/0x130 [ 212.927541] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 212.932301] ? find_held_lock+0x36/0x1c0 [ 212.936350] ? page_vma_mapped_walk+0x2ec/0x27f0 [ 212.941087] ? lock_downgrade+0x900/0x900 [ 212.945231] ? kasan_check_read+0x11/0x20 [ 212.949367] ? do_raw_spin_unlock+0xa7/0x330 [ 212.953756] ? do_raw_spin_trylock+0x270/0x270 [ 212.958325] ? __ia32_sys_msync+0x510/0x510 [ 212.962633] ? _raw_spin_unlock+0x2c/0x50 [ 212.966765] ? page_vma_mapped_walk+0x2f1/0x27f0 [ 212.971609] ? __bpf_trace_sched_wake_idle_without_ipi+0x10/0x10 [ 212.977734] ? __switch_to_asm+0x34/0x70 [ 212.981791] ? __switch_to_asm+0x34/0x70 [ 212.985835] ? __switch_to_asm+0x40/0x70 [ 212.989882] ? print_usage_bug+0xc0/0xc0 [ 212.993924] ? __switch_to_asm+0x34/0x70 [ 212.997972] ? __schedule+0x9e6/0x1ed0 [ 213.001848] ? __sched_text_start+0x8/0x8 [ 213.005981] ? graph_lock+0x270/0x270 [ 213.009785] ? __sched_text_start+0x8/0x8 [ 213.013921] ? __lock_acquire+0x62f/0x4c20 [ 213.018154] ? find_held_lock+0x36/0x1c0 [ 213.022206] ? mark_held_locks+0x130/0x130 [ 213.026427] ? lock_downgrade+0x900/0x900 [ 213.030561] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 213.035308] ? page_referenced_one+0x5aa/0x840 [ 213.039902] ? up_read+0x77/0x2c0 [ 213.043428] ? trace_hardirqs_off+0xb8/0x310 [ 213.047838] ? graph_lock+0x270/0x270 [ 213.051620] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.057144] ? check_preemption_disabled+0x48/0x280 [ 213.062150] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 213.067676] ? page_mapping+0x5a2/0xa50 [ 213.071635] ? find_held_lock+0x36/0x1c0 [ 213.075687] ? page_evictable+0x2de/0x540 [ 213.079816] ? lock_downgrade+0x900/0x900 [ 213.083965] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 213.089504] ? __isolate_lru_page+0xd05/0x1540 [ 213.094091] ? putback_lru_page+0x280/0x280 [ 213.098406] ? page_evictable+0x305/0x540 [ 213.102540] ? kswapd_stop+0x100/0x100 [ 213.106410] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.111930] ? check_preemption_disabled+0x48/0x280 [ 213.116932] ? __this_cpu_preempt_check+0x1c/0x20 [ 213.121767] ? __mod_zone_page_state+0x8a/0xf0 [ 213.126330] ? graph_lock+0x270/0x270 [ 213.130120] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 213.135641] ? putback_inactive_pages+0x1eb3/0x27e0 [ 213.140648] ? reclaim_clean_pages_from_list+0x1310/0x1310 [ 213.146261] ? graph_lock+0x270/0x270 [ 213.150047] ? page_referenced+0x2d5/0xaa0 [ 213.154270] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.159804] ? check_preemption_disabled+0x48/0x280 [ 213.164805] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.170328] ? check_preemption_disabled+0x48/0x280 [ 213.175328] ? __lock_is_held+0xb5/0x140 [ 213.179372] ? __this_cpu_preempt_check+0x1c/0x20 [ 213.184203] ? __mod_zone_page_state+0x8a/0xf0 [ 213.188779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.194330] ? isolate_lru_pages.isra.56+0xc7d/0x19e0 [ 213.199511] ? __isolate_lru_page+0x1540/0x1540 [ 213.204171] ? mark_held_locks+0x130/0x130 [ 213.208391] ? mark_held_locks+0xc7/0x130 [ 213.212524] ? print_usage_bug+0xc0/0xc0 [ 213.216581] ? mark_held_locks+0x130/0x130 [ 213.220804] ? trace_hardirqs_on+0xbd/0x310 [ 213.225111] ? shrink_inactive_list+0xa4a/0x1c60 [ 213.229855] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 213.235301] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 213.240413] ? __lock_acquire+0x62f/0x4c20 [ 213.244633] ? graph_lock+0x270/0x270 [ 213.248424] ? graph_lock+0x270/0x270 [ 213.252227] ? print_usage_bug+0xc0/0xc0 [ 213.256280] ? mark_held_locks+0x130/0x130 [ 213.260507] ? find_held_lock+0x36/0x1c0 [ 213.264574] ? mark_held_locks+0xc7/0x130 [ 213.268721] ? _raw_spin_unlock_irq+0x27/0x80 [ 213.273213] ? _raw_spin_unlock_irq+0x27/0x80 [ 213.277693] ? lockdep_hardirqs_on+0x421/0x5c0 [ 213.282344] ? trace_hardirqs_on+0xbd/0x310 [ 213.286654] ? kasan_check_read+0x11/0x20 [ 213.290811] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 213.296246] ? trace_hardirqs_on+0x310/0x310 [ 213.300642] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.306165] ? check_preemption_disabled+0x48/0x280 [ 213.311168] shrink_inactive_list+0x77b/0x1c60 [ 213.315763] ? putback_inactive_pages+0x27e0/0x27e0 [ 213.320777] ? lruvec_lru_size+0x2ef/0x540 [ 213.325005] ? blk_lld_busy+0xa0/0xa0 [ 213.328795] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 213.334053] ? rcu_read_unlock_special+0x370/0x370 [ 213.338990] shrink_node_memcg+0x7a8/0x19a0 [ 213.343295] ? rcu_read_unlock+0x33/0x60 [ 213.347363] ? shrink_active_list+0x22b0/0x22b0 [ 213.352032] ? __lock_is_held+0xb5/0x140 [ 213.356080] ? mem_cgroup_from_id+0x30/0x30 [ 213.360386] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.366012] ? compaction_suitable+0x1cc/0x550 [ 213.370580] ? isolate_migratepages_range+0x270/0x270 [ 213.375762] ? kasan_check_read+0x11/0x20 [ 213.379899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 213.385418] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 213.390593] shrink_node+0x3e1/0x17f0 [ 213.394390] ? shrink_node_memcg+0x19a0/0x19a0 [ 213.398980] ? __delayacct_freepages_start+0x41/0x80 [ 213.404066] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 213.409550] ? kvm_clock_read+0x18/0x30 [ 213.413512] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 213.418510] ? ktime_get+0x2c1/0x400 [ 213.422216] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 213.426697] ? __isolate_free_page+0x660/0x660 [ 213.431265] ? print_usage_bug+0xc0/0xc0 [ 213.435313] do_try_to_free_pages+0x3df/0x12a0 [ 213.439898] ? graph_lock+0x270/0x270 [ 213.443691] ? shrink_node+0x17f0/0x17f0 [ 213.447742] ? __lock_is_held+0xb5/0x140 [ 213.451791] try_to_free_pages+0x4d0/0xb90 [ 213.456024] ? do_try_to_free_pages+0x12a0/0x12a0 [ 213.460863] ? kasan_check_read+0x11/0x20 [ 213.464996] ? psi_memstall_enter+0x24f/0x2c0 [ 213.469473] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 213.474908] ? lock_repin_lock+0x430/0x430 [ 213.479136] ? _raw_spin_unlock_irq+0x60/0x80 [ 213.483615] ? psi_memstall_enter+0x24f/0x2c0 [ 213.488111] ? psi_memstall_tick+0x230/0x230 [ 213.492513] __alloc_pages_slowpath+0xa5a/0x2d90 [ 213.497268] ? __alloc_pages_slowpath+0x25dd/0x2d90 [ 213.502305] ? warn_alloc+0x120/0x120 [ 213.506107] ? __ext4_handle_dirty_metadata+0x1e0/0x5a0 [ 213.511467] ? warn_alloc+0x120/0x120 [ 213.515266] ? __lock_acquire+0x62f/0x4c20 [ 213.519486] ? warn_alloc+0x120/0x120 [ 213.523270] ? print_usage_bug+0xc0/0xc0 [ 213.527317] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 213.532838] ? should_fail+0x22d/0xd01 [ 213.536711] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 213.542239] ? should_fail+0x22d/0xd01 [ 213.546114] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 213.551292] ? graph_lock+0x270/0x270 [ 213.555081] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 213.560190] ? __lock_is_held+0xb5/0x140 [ 213.564263] ? graph_lock+0x270/0x270 [ 213.568049] ? ___might_sleep+0x1ed/0x300 [ 213.572196] ? arch_local_save_flags+0x40/0x40 [ 213.576763] ? check_preemption_disabled+0x48/0x280 [ 213.581774] ? __might_sleep+0x95/0x190 [ 213.585749] __alloc_pages_nodemask+0xa89/0xde0 [ 213.590407] ? __alloc_pages_slowpath+0x2d90/0x2d90 [ 213.595412] ? mark_held_locks+0xc7/0x130 [ 213.599545] ? cache_grow_begin+0x5a3/0x8c0 [ 213.603850] ? lockdep_hardirqs_on+0x421/0x5c0 [ 213.608425] ? trace_hardirqs_on+0xbd/0x310 [ 213.612733] ? fallback_alloc+0x203/0x2e0 [ 213.616866] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 213.622298] ? ____cache_alloc_node+0x16b/0x1e0 [ 213.626954] ? lock_downgrade+0x900/0x900 [ 213.631082] ? graph_lock+0x270/0x270 [ 213.634871] cache_grow_begin+0x91/0x8c0 [ 213.638915] ? do_raw_spin_unlock+0xa7/0x330 [ 213.643309] fallback_alloc+0x203/0x2e0 [ 213.647270] ____cache_alloc_node+0x1c7/0x1e0 [ 213.651754] kmem_cache_alloc+0x1f6/0x730 [ 213.655890] ? mempool_free+0x370/0x370 [ 213.659850] mempool_alloc_slab+0x44/0x60 [ 213.663987] mempool_alloc+0x193/0x4a0 [ 213.667883] ? mempool_destroy+0x30/0x30 [ 213.671941] ? kasan_check_write+0x14/0x20 [ 213.676162] ? bio_init+0x139/0x260 [ 213.679791] ? bio_add_page+0x120/0x120 [ 213.683751] ? kasan_check_read+0x11/0x20 [ 213.687897] bvec_alloc+0x12a/0x2d0 [ 213.691508] bio_alloc_bioset+0x46e/0x6f0 [ 213.695639] ? bvec_alloc+0x2d0/0x2d0 [ 213.699425] ? balance_dirty_pages_ratelimited+0x23c0/0x23c0 [ 213.705223] ext4_bio_write_page+0x1316